Demonic consultation

Choose a card name. Exile the top six cards of your library, then reveal cards from the top of your library until you reveal a card with the chosen name. Put that card into your hand and exile all other cards revealed this way.

Annihilator 1 (Whenever this creature attacks, defending player sacrifices a permanent of their choice.) : Create two 0/1 colorless Eldrazi Spawn creature tokens. They have "Sacrifice this token: Add ." : Cast any number of Eldrazi spells from among cards you own outside the game without paying their mana costs.

Activated abilities of creatures you control cost less to activate. This effect can't reduce the mana in that cost to less than one mana.