Boltix, ChaosEngineer

Flying
{2}{r}{t} create a bomb token that has pay {1}{r} and flip a coin.
If heads gain 1 hp for every artifact you control,
but are tapped till the beginning of your next turn.
If tails deal X damage to all players where X is equal
to the amount of artifacts you control
Whenever a non-token creature you controls dies
and would go to the graveyard,
exile it instead and create a 0/0 gremlin token