Joven and Chandler

Whenever an artifact is put into a graveyard from the battlefield, put a number of +1/+1 counters equal to that artifact's mana value on Joven and Chandler.

RRR, ⟳: Gain control of target artifact until end of turn. Untap it. It gains haste until end of turn.

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Backup 2 (When this creature enters the battlefield, put two +1/+1 counters on target creature. If that's another creature, it gains the following abilities until end of turn.)

Haste

Whenever this creature deals combat damage to an opponent, destroy target artifact that player controls.