Crooked Scales [Mercadian Masques] SPA Patrulla de Puentespino Set: Journey into Nyx Type:

Set: Journey into Nyx Type: Creature — Giant Uncommon Cost: {2}{G}{G} When you're dealt combat damage

Set: Champions of Kamigawa Type: Land Uncommon Cost: {T}: Add {C}

Set: Rivals of Ixalan Type: Creature — Merfolk Warrior Common Cost: {U} Mist-Cloaked Herald can't be blocked

then each of those creatures deals damage equal to its power to that creature

When Argoth suffers

Crooked Scales [Mercadian Masques] SPA Patrulla de Puentespino Set: Journey into Nyx Type:Set: Mercadian Masques Type: Artifact Rare Cost: {4} {4}, {T}: Flip a coin. If you win the flip, destroy target creature an opponent controls. If you lose the flip, destroy target creature you control unless you pay {3} and repeat this process.