Simic Ascendancy [Ravnica Allegiance Prerelease Promos] Lobster whenever a creature you control

whenever a creature you control deals combat damage to a player

Set: Shadowmoor Type: Creature — Merfolk Rogue Rarity: Uncommon Cost: {5}{U} Blue creatures you control can't be blocked

Set: Shadowmoor Type: Creature — Goblin Knight Rarity: Rare Cost: {1}{R/G}{R/G}{R/G} Trample

Set: Ninth Edition Type: Creature — Specter Rarity: Rare Cost: {1}{B}{B} Flying

Simic Ascendancy [Ravnica Allegiance Prerelease Promos] Lobster whenever a creature you controlSet: Ravnica Allegiance Prerelease Promos Type: Enchantment Rarity: Rare Cost: {G}{U} {1}{G}{U}: Put a +1 +1 counter on target creature you control. Whenever one or more +1 +1 counters are put on a creature you control, put that many growth counters on Simic Ascendancy. At the beginning of your upkeep, if Simic Ascendancy has twenty or more growth counters on it, you win the game.