Fountain of Cho [Mercadian Masques] Rabbit Beast Whenever a +1/+1 counter is

Whenever a +1/+1 counter is put on Fathom Mage

Set: Fate Reforged Type: Sorcery Rarity: Uncommon Cost: {X}{U}{U} Choose one —

Set: Core Set 2019 Type: Creature — Sphinx Rarity: Rare Cost: {4}{U}{U} Flying (This creature can't be blocked except by creatures with flying or reach

return target noncreature

Set: Alpha Edition Type: Creature — Hydra Rarity: Rare Cost: {X}{R}{R} Rock Hydra enters the battlefield with X +1/+1 counters on it

Fountain of Cho [Mercadian Masques] Rabbit Beast Whenever a +1/+1 counter isSet: Mercadian Masques Type: Land Rarity: Uncommon Fountain of Cho enters the battlefield tapped. {T}: Put a storage counter on Fountain of Cho. {T}, Remove any number of storage counters from Fountain of Cho: Add {W} for each storage counter removed this way.