Spellskite can change targets, it cannot change modes.

can’t change a spell or ability’s modes (usually indicated by “choose one” or “choose two”).  Modes are locked in when a spell or ability is put on the stack.  If is cast choosing the mode to “counter target artifact spell,” Spellskite can’t change the target to itself, because the mode to “return target artifact to its owner’s hand” wasn’t […]

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