Pyke

1, : Return a friendly unit at a battlefield to its owner's hand. Play a Gold gear token exhausted. (It has "[Reaction][>] Kill this, : [Add] .")

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[Ganking] (I can move from battlefield to battlefield.)
You may pay as an additional cost to play me.
When you play me, if you paid the additional cost, ready me and give me +2 this turn.

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[Backline] (I must be assigned combat damage last.)
Once each turn, when an enemy unit dies while I'm at a battlefield, play a Gold gear token exhausted. (It has "[Reaction][>] Kill this, : [Add] .")

Kill a unit at a battlefield. Then, if it had 3 or less, you may play this from your trash for .