Geverifieerde rulings en officieel bevestigde community-inzichten, met per item de volledige bewijsketen: bron, citaat en klikbare §-verwijzingen.
Deflect
Deflect is a mandatory additional cost: you must pay it if you want to finalize a spell or ability that chooses a unit with Deflect. The fact that you can choose not to finalize triggered abilities (to avoid paying) does not make the cost optional. Ezreal, Prodigy cannot reduce Deflect costs. Citaat uit de bron: “Deflect is a mandatory additional cost, meaning you must pay it if you want to finalize a spell or ability that chooses something with Deflect.”
Gear cards enter play in the Ready state (not Exhausted), so they can be used immediately; Gear always enters at the controller's Base.
“Gear cannot hold or conquer battlefields, and can only exist in base. If a Gear card is played at a battlefield, it is immediately recalled to the base.”
“Gear enters play Ready, so you can use it right away. It always goes to your Base.”
Astral Heron
Astral Heron's triggered ability discounts the next card played (added to the chain and queued for finalization) this turn after the ability resolves. Erratum wording: 'When you play your first card each turn, if I'm at a battlefield, the next card you play this turn costs [2]AA less.' Citaat uit de bron: “It discounts the next card played (added to the chain and queued for finalization) this turn after the ability resolves.”
When an Attacker destroys all Defending units and still has units remaining, they conquer the Battlefield and immediately score 1 point; additionally, every time a Battlefield is conquered without winning the game, the conquering player draws a card.
“every time you conquer a Battlefield but it doesn't win you the game, you get to draw a card”
Icathian Rain
Icathian Rain is no longer a reflexive trigger. All six targets are chosen upfront before anything resolves; the opponent can react before resolution; then each chosen unit takes 2 damage on resolution. The same unit may be chosen for multiple instances. Citaat uit de bron: “you pick all the targets up front, the other player can react before any of it resolves, and then each of the units affected take the damage on resolution”
During the Beginning Phase, each player channels 2 Runes from the top of their Rune Deck; the second player channels 3 Runes on their very first turn to compensate for going second.
“If you're going second on your very first turn, you get 3 Runes instead to help catch up.”
Zilean + Deceiver (no infinite token loop)
When Deceiver's reflexive trigger copies Zilean, Time Mage, the two Reflection tokens resolve and become copies of Zilean. However, there is no subsequent 'play token' game action for Zilean's replacement effect to apply to, so no further tokens are produced and the loop does not repeat. Citaat uit de bron: “there is no subsequent play game action involving tokens to apply their replacement effects to”
Each Battlefield can only award 1 point per turn; moving a unit away and replacing it with another unit in the same turn does not grant additional points.
“Moving away from a battlefield and back to it with another unit the same turn will not gain you a bonus point.”
“Each Battlefield only gives you 1 point per turn max. You can't move a unit away and move a new one in to score twice.”
Accelerate
Accelerate creates a delayed replacement effect that causes the card to enter ready. This delayed replacement effect persists on the card even after the Accelerate keyword itself is no longer present when the card resolves. Citaat uit de bron: “Accelerate creates a delayed replacement effect that causes Atakhan to enter ready. Although he lacks the Accelerate keyword when he resolves, he still has the delayed replacement effect”
Recalling a unit to base via Zhonya's Hourglass is explicitly not considered a move.
“Send it to base. This isn't a move.”
Jax, Unmatched
Jax's Equipment everywhere have Quick-Draw: each gains Reaction, meaning when you play it, you attach it to a unit you control. This is captured in the revised text. Citaat uit de bron: “Your Equipment everywhere have Quick-Draw. (Each gains Reaction. When you play it, attach it to a unit you control.)”
Units with the Ganking ability may move directly from one Battlefield to another, whereas normal units can only move between their controller's Base and a Battlefield.
“only units with the Ganking ability may move between battlefields”
“Some units have Ganking though, which lets them move from Battlefield to Battlefield.”
Arise!
Arise! is revised to use a reflexive trigger: it first plays a 2 M Sand Soldier unit token for each Equipment you control, then 'Then do this:' readies up to two of them, allowing players to respond between the two effects. Citaat uit de bron: “Play a 2 M Sand Soldier unit token for each Equipment you control. Then do this: Ready up to two of them.”
A player's main deck may only contain cards belonging to the domains listed on their Champion Legend card.
“her deck must only contain cards of the Mind and Order domain”
“You can only put cards in your deck that match your Legend's Domains”
errata policy
Errata may impact the effective power level of cards, but Riot has no plans to issue errata strictly for power level reasons — only to make cards work within the rules and as intended. Citaat uit de bron: “we have no plans to issue errata strictly for power level reasons—only to make cards work within the rules and as intended”
Even when no enemy units are present during a Showdown, both players may still play Actions and Reactions in an attempt to remove the attacking units.
“Even if there are no enemy units, players may still play Actions and Reactions to try and remove the attacking units.”
Rumble, Hotheaded
Rumble, Hotheaded can choose a Mech token to recycle. Tokens inherit the recycle destination of their type—a token that is a unit or gear is recycled to the Main Deck. The token then vanishes (as tokens do whenever they leave the board), but it still counts as 'the unit you recycled,' so Rumble can check its Might. Citaat uit de bron: “tokens 'inherit' the recycle destination of their type(s), so a token that's a unit or gear is recycled to your Main Deck… it still counts as 'the unit you recycled' and Rumble can check its Might.”
Action Spells may be played during the controller's turn or during a Showdown; on an opponent's turn, a player may only play Action Spells during Showdowns.
“Most Spells are labeled Action, which means you can play them during your turn or during a Showdown. If it's not your turn, you can only play Action Spells during Showdowns.”
Elder Dragon (§460.2.c.3)
Elder Dragon's passive ('Any amount of your damage is enough to kill enemy units') alters the lethal damage threshold for units with damage marked by Elder Dragon's controller to any non-zero amount. As a result, Elder Dragon can check damage marked on units before it enters the board, and its controller need only assign one damage per unit during the Combat Damage step. Citaat uit de bron: “Elder Dragon can check damage marked on units by its controller before it enters the board, and that players need only assign one damage to units during the Combat Damage step while they control Elder”
Signature Cards are Legend-specific cards that can only be included in a deck matching their designated Legend, with a maximum of 3 total Signature Cards permitted across the entire deck.
“You can only use them with their matching Legend, and you can't put more than 3 total Signature Cards in your deck.”
Shady Spectacles
If a Sand Soldier equipped with Shady Spectacles (copying Azir, Ascendent) uses the copied activated ability, and then Shady Spectacles is detached and reattached to that same Sand Soldier copying the same unit, the activated ability can be used again. Each attach creates a new, distinct instance of the copied ability, even on the same game object. Citaat uit de bron: “Each instance of the copied ability is a different ability... the copied rules text is an entirely new instance of the ability.”
Ravenborn Tome's Bonus Damage effect now applies only to the next spell played 'this turn,' preventing the bonus from carrying forward to future turns.
“The next spell you play this turn deals 1 Bonus Damage.”
cleanup
Cleanups work inversely to other HOT FEPR procedures: several tasks are queued at once, and all of them must be completed before the FEPR process will initiate. Citaat uit de bron: “cleanups work in the inverse, where several tasks are queued at once and all must be completed before the FEPR process will initiate”
A unit's Might value represents both the damage it deals in combat and the total damage it can absorb before being destroyed.
“Might... this number shows how much damage they deal AND how much they can take”
Dragon Roost (§054.2., 369.3.)
When two mandatory positive requirements conflict on where to play a unit (e.g., Elder Dragon's AA instructing play to Dragon Roost and another effect specifying a different location), the player chooses one requirement and ignores all others. This only applies to mandatory positive requirements that specify a location or method without also preventing play elsewhere. Citaat uit de bron: “the player chooses one of those requirements and ignores all others”
golden-rules (§054.2., 369.3.)
In Riftbound, 'can't' beats 'can.' Perched Grimwyrm's restriction (can't be played except to a battlefield conquered this turn) is a prohibition that Dragon Roost's permission to play a dragon there cannot overcome. Citaat uit de bron: “In Riftbound, 'can't' beats 'can.'...Dragon Roost's ability tries to give the Grimwyrm permission to be played to the Roost, but that can't overcome Perched Grimwyrm's own restriction.”
Svellsongur
When Svellsongur is attached to Aphelios, Exalted, he gains a second copy of his triggered ability in time for both copies to trigger on that attach. The 'choose one that hasn't been chosen this turn' restriction applies separately to each instance of the ability, so the same option can be chosen for both, but tracking must be kept per-copy. Citaat uit de bron: “He does have the second copy of his ability in time, and it will trigger. The 'one that hasn't been chosen this turn' restriction applies separately to each instance of his ability.”
Draven, Audacious
When Draven wins combat and conquers, his triggered ability resolves before you gain the regular point for scoring the battlefield and before any conquer effects trigger. Consequently, Draven's point is counted first—e.g., going from 6 to 7 points means the subsequent conquer gives a card draw instead of the 8th point. Citaat uit de bron: “Draven's ability will trigger and resolve before you gain your regular point for scoring the battlefield and before any conquer effects are triggered.”
Rell, Magnetic
Rell, Magnetic is revised to use a reflexive trigger for Equipment attachment: when she attacks and you play a qualifying Equipment for free, 'then do this:' attaches it to her as a separate chain item, allowing players to respond before the attachment resolves. Citaat uit de bron: “If you do, then do this: Attach it to me.”
Heisho, Shell of the World (§766., 767.)
While a spell or ability has at least one target that is a unit located at Heisho, Shell of the World, all instances of Deflect on all units are treated as inactive when paying costs for that spell or ability. This applies only to that specific spell or ability instance; a subsequent spell or ability targeting units not at Heisho must still pay for Deflect normally. Citaat uit de bron: “While your spell or ability chooses a unit at Heisho, Shell of the World, you ignore deflect while paying for the spell.”