Vaile, Hedron Lord

+2: Create a colorless Hedron artifact token with "when this token enters the battlefield, pay X. Sacrifice to put a creature CMC X or less on field.
-3: Target player sacrifices X permanents, where X is Vaile's loyalty.
-7: You gain an emblem with "whenever a colored permanent deals damage to you or a permanent you control, it gains 'Manaless'