Clement, the Worrywort [Bloomburrow]

Clement, the Worrywort [Bloomburrow]Set: Bloomburrow Type: Legendary Creature Frog Druid Rarity: Rare Cost: {1}{G}{U} Vigilance Whenever Clement, the Worrywort or another creature you control enters, return up to one target creature you control with lesser mana value to its owner's hand. Frogs you control have "{T}: Add {G} or {U}. Spend this mana only to cast a creature spell."

Set: Ikoria: Lair of Behemoths Type: Instant Rarity: Uncommon Cost: {1}{B} Choose one —

This explains why the goblins remain unaffected

Set: Gatecrash Type: Creature — Beast Rarity: Rare Cost: {2}{W}{B} Creatures blocking or blocked by Alms Beast have lifelink

Set: Unsanctioned Type: Creature — Elemental Rarity: Mythic Cost: {4}{R}{R}{R} (This creature has INFINITE POWER

you may cast nonland permanent card from that player's graveyard

Set: Starter 1999 Type: Creature — Angel Rarity: Rare Cost: {5}{W}{W} Flying

Players can't cast spells of the chosen type

destroy all other creatures you control

"The dagger is just the distraction

Set: Prophecy Type: Enchantment Rarity: Rare Cost: {4}{G}{G} Whenever a nontoken creature enters the battlefield

Throw enough goblins at any problem and it should go away

its controller adds an additional {R}