Dax, Zealot of Shar

Partner with Fein, Scholar of Futures
Haste, First Strike
Tap another Legendary Creature you control:
Dax gains Indestructible until end of turn.
Whenever a player looks at or reveals cards from
the top of their library, Dax deals 3 damage to
any target.
If a card would be put onto the bottom of an
opponent's library, exile it instead.