Agatha of the Vile Cauldron [WOE - 199] Goblin Warlock and you may spend colorless

and you may spend colorless mana as though it were mana of any color to cast that spell

you may sacrifice an artifact

Rules Text Contains: When Adéwalé enters the battlefield

inspiring hope in the Mirrans and terror in New Phyrexia

this permanent isn't a creature until end of turn

Agatha of the Vile Cauldron [WOE - 199] Goblin Warlock and you may spend colorlessRarity: M #: 199 Creature Type or Sub Type: Legendary Creature Human Warlock P: 1 T: 1 Rules Text Contains: Activated abilities of creatures you control cost X less to activate, where X is Agatha of the Vile Cauldron's power. This effect can't reduce the mana in that cost to less than one mana. 4RG: Other creatures you control get +1 +1 and gain trample and haste until end of turn.