Huddle Up

Assist (Another player can pay up to {2} of this spell's cost.)
Two target players each draw a card.

Azra Bladeseeker

When this creature enters, each player on your team may discard a card, then each player who discarded a card this way draws a card.

Scheming Symmetry

Choose two target players. Each of them searches their library for a card, then shuffles and puts that card on top.

Ashiok, Dream Render

Spells and abilities your opponents control can't cause their controller to search their library.
−1: Target player mills four cards. Then exile each opponent's graveyard.