Costs within instructions are instructions that take a particular form (“[do X] to [do Y]”). [Do X] is the cost associated with the instruction, and [do Y] is the effect. 1. For spells, costs within instructions are paid on resolution of the spell. In order to get the effect, the cost must be paid. 2. For triggered abilities, costs within instructions that appear in the first part of the trigger effect are paid on finalization of the triggered ability. In order to place the triggered ability on the chain, the cost must be paid. 2.a. Costs within instructions that appear in any later part of the trigger effect are paid on resolution.
§ 740.4.a Core Rules PDF (officieel)
§ 740 Card text and this rules document use certain terms in specific ways that are different from their common usage.
§ 740.4 Some terms in this document are used in particular ways:
