Ball Lightning [The Dark] Elemental Knight or Plains card

or Plains card

you hear the sound of drums echoing in halls where no dwarf has lived in generations

— Whenever you attack

Set: Ikoria: Lair of Behemoths Type: Enchantment Rarity: Uncommon Cost: {2}{W} Humans you control get +1/+1

Set: Outlaws of Thunder Junction Type: Creature — Insect Rarity: Common Cost: {4}{B}{B} Flash

Ball Lightning [The Dark] Elemental Knight or Plains cardSet: The Dark Type: Creature Elemental Rarity: Rare Cost: {R}{R}{R} Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.) Haste (This creature can attack and {T} as soon as it comes under your control.) At the beginning of the end step, sacrifice Ball Lightning.