Sludge Monster [Innistrad: Midnight Hunt] SPA Ruinas de Trokair you may cast spells from

you may cast spells from your hand without paying their mana costs

where X is the amount of mana spent to cast Prossh

Set: EX: Crystal Guardians Type: Item Rarity: Common

Set: New Phyrexia Type: Artifact Rare Cost: {2} Creatures entering the battlefield don't cause abilities to trigger

Set: Sun & Moon: Dragon Majesty Type: Fire Rarity: Holo Rare Retreat cost: Colorless

Sludge Monster [Innistrad: Midnight Hunt] SPA Ruinas de Trokair you may cast spells fromSet: Innistrad: Midnight Hunt Type: Creature Horror Rarity: Rare Cost: {3}{U}{U} Whenever Sludge Monster enters the battlefield or attacks, put a slime counter on up to one other target creature. Non Horror creatures with slime counters on them lose all abilities and have base power and toughness 2 2. Tracking it isn't the hard part.