Shockmaw Dragon

Flying

Whenever this creature deals combat damage to a player, it deals that much damage to each creature that player controls.

Flying

Whenever this creature attacks, it deals 1 damage to target creature defending player controls.

Whenever this creature is dealt damage, it deals that much damage to each player.

Flying

: This creature gets +1/+0 until end of turn.

Whenever this creature deals combat damage to a player, you may have it deal that much damage to target creature that player controls.

Flying

Myriad (Whenever this creature attacks, for each opponent other than defending player, you may create a token copy that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.)

Whenever this creature deals combat damage to a player, create a Treasure token.

Flying, trample

Whenever this creature deals combat damage to a player, you may collect evidence X. When you do, this creature deals X damage to each creature and planeswalker that player controls. (To collect evidence X, exile cards with total mana value X or greater from your graveyard.)