Guardian Project [Ravnica Allegiance Prerelease Promos] OP08-EN002 when an opponent's monster activates

when an opponent's monster activates its effect (Quick Effect): You can target 1 Effect Monster your opponent controls or in their GY

Set: Commander 2014 Type: Artifact Creature — Wurm Rarity: Mythic Cost: {6} Deathtouch

Whenever enchanted creature deals damage to an opponent

[2LL] Sky-high Claws (70)

Set: Friday Night Magic 2007 Type: Land Rare Cost: {2}

Guardian Project [Ravnica Allegiance Prerelease Promos] OP08-EN002 when an opponent's monster activatesSet: Ravnica Allegiance Prerelease Promos Type: Enchantment Rarity: Rare Cost: {3}{G} Whenever a nontoken creature enters the battlefield under your control, if it doesn't have the same name as another creature you control or a creature card in your graveyard, draw a card. Simic's strength comes from its diversity.