Zara, Renegade Recruiter 3UR
Legendary Creature — Human Pirate (R)
Whenever Zara attacks, look at defending player's hand, you may put a creature card from among those cards onto the battlefield under your control tapped and attacking that player or a planeswalker they control. Return that creature to its owner's hand at the beginning of the next end step.
Red has a lot of cards that put a creature from your hand into play for 1 turn. Adding blue means you can now do that, with your opponent's hand. Reprints include Makeshift Munitions and Run Away Together.
This card is a pain, it's very meta dependent. In the meta's it's good in it feels oppressive, just taking everyone's best creatures out of their hand, getting any ETB triggers, bashing them, and either giving them back to be used again or hopefully sacrificed. Maybe run with other bounce or ways to make it hard for your opponents to actually cast there best stuff.
But, in other metal's it does nothing. Grabing some mana dork or a synergy creature probably isn't worth it and there are a number of decks you could just wiff against.