Feaster of Fools [Modern Horizons] Dragon Hydra then goad all creatures with

then goad all creatures with a name chosen for Day of the Moon

Set: Signature Spellbook: Gideon Type: Instant Rarity: Rare Cost: {W} Exile target creature

but sometimes they mindlessly attempt familiar tasks

When Reveillark leaves the battlefield

you may change "swampwalk" to "plainswalk

Feaster of Fools [Modern Horizons] Dragon Hydra then goad all creatures withSet: Modern Horizons Type: Creature Demon Rarity: Uncommon Cost: {4}{B}{B} Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Flying Devour 2 (As this enters the battlefield, you may sacrifice any number of creatures. This creature enters the battlefield with twice that many +1 +1 counters on it.)