Weldakon, Failed Mastermind

Deathtouch, Haste, Imitate
Whenever you imitate a card, do
1 damage to any target. You may
imitate cards from the graveyard
instead of from exile.
{1}{u}: Search your library for a spell
and exile it. Do 3 damage to any target.
Whenever you exile a card, if it had imitate,
each opponent exiles a card from their hand.
for as long as their exiled, you may cast them
without paying their mana costs.