Heres some cards you may have played without even realizing that theyve got a selective group hug function: Path to Exile, Boseiju, Who Endures, An Offer You Cant Refuse, Demolition Field, and Assassins Trophy can fix a mana-screwed players colors in a pinch
However, that owner will be under another player's control, so that player controlling that owner actually makes the decision

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Most situations would prefer an evoked Shriekmaw, but anything the elemental can't target is something you can hope to eliminate with a well-placed plague instead