Reaper King [Mystery Booster] Modern Horizons 3 Commander add one mana of that

add one mana of that color

Set: Kamigawa: Neon Dynasty Type: Artifact Creature — Human Samurai Rarity: Uncommon Cost: {R} Haste

Set: Ravnica: Clue Edition Type: Instant Rarity: Uncommon Cost: {1}{U} Until end of turn

but it doesn't know how close it is to becoming the victory feast

Whenever you attack with two or more creatures

Reaper King [Mystery Booster] Modern Horizons 3 Commander add one mana of thatSet: Mystery Booster Type: Legendary Artifact Creature Scarecrow Rarity: Rare Cost: {2 W}{2 U}{2 B}{2 R}{2 G} ({2 W} can be paid with any two mana or with {W}. This card's mana value is 10.) Other Scarecrow creatures you control get +1 +1. Whenever another Scarecrow enters the battlefield under your control, destroy target permanent. It's harvest time.