Alex, the Groom

Indestructible, Lifelink, Vigilance.
Whenever Alex the Groom enters the battlefield each opponent searches their deck for a card equal to the mana value spend to cast Alex the Groom, reveals it, and puts it into their hand.
Whenever a card searched for by Alex the Groom is cast Alex the Groom deals 2 damage to each opponent. Then create a Treasure token.