Any subsequent reference to "here" in the corresponding effect is reassigned to the Controller's Base, where the Unit was played. Any further effects that may be invalidated are invalidated as if the effect was mistargeted. See rule 355.6. Targeting for more information on Mistargeting.
§ 462.2.b Core Rules PDF (officieel)
§ 462 Combat can only occur between Units controlled by exactly two players.
§ 462.2 In Modes of Play with more than two players, Battlefields with Staged Combats or Combats in Progress are Invalid to be chosen as a location to play one or more Units by a player not involved in that Combat by any means.
