
Song of the Ood — Noncreature spells have convoke. (A player's creatures can help cast those spells. Each creature they tap while casting a noncreature spell pays for or one mana of that creature's color.)
Red-Eye — Whenever chaos ensues, for each opponent, goadgoadUntil your next turn, It attacks each combat if able and attacks a player other than you if able. up to one target creature that opponent controls. Until your next turn, those creatures can't become tapped unless they're being declared as attackers.
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Read from the rules text. A card that enables a keyword makes or is the thing; a card that rewards it gets better when you have it. Two cards interact when one enables what the other rewards.