Setessan Champion [Theros Beyond Death Prerelease Promos]Set: Theros Beyond Death Prerelease Promos Type: Creature Human Warrior Rarity: Rare Cost: {2}{G} Constellation Whenever an enchantment enters the battlefield under your control, put a +1 +1 counter on Setessan Champion and draw a card. "A blessing is not a gift. It is a duty."

Other Scarecrow creatures you control get +1/+1

Set: EX: Team Rocket Returns Type: Fighting Rarity: Uncommon Retreat cost: Colorless

if that spell's mana cost or that ability's activation cost contains {X}

When Dance of Many leaves the battlefield

Set: Beta Edition Type: Creature — Bird Rarity: Rare Cost: {G} Flying

It's knowing where to find what you don't

Set: Commander 2011 Type: Legendary Creature — Elemental Rarity: Mythic Cost: {G}{U}{R} Protection from white and from black

(For example

Set: Urza's Saga Type: Enchantment Rarity: Rare Cost: {3}{G} Whenever a Forest is tapped for mana

Set: Lorwyn Type: Legendary Planeswalker — Liliana Rarity: Rare Cost: {3}{B}{B} +1: Target player discards a card

Set: Neo Destiny 1st Edition Type: Fire Rarity: Secret Rare Retreat cost: Colorless

Set: Wizards of the Coast: Black Star Promos Type: Colorless Rarity: Black Star Promo Retreat cost: Colorless