The Infamous Cruelclaw (Promo Pack) [Bloomburrow Promos] Elemental Dragon The flashback cost is equal

The flashback cost is equal to that card's mana cost

so you trained

put a +1/+1 counter on Spawn of Mayhem

Set: Alpha Edition Type: Enchantment — Aura Rarity: Common Cost: {1}{U} Enchant land

They must capture as much territory as possible and build roosts before they collapse back into squabbling

The Infamous Cruelclaw (Promo Pack) [Bloomburrow Promos] Elemental Dragon The flashback cost is equalSet: Bloomburrow Promos Type: Legendary Creature Weasel Mercenary Rarity: Mythic Cost: {1}{B}{R} Menace Whenever The Infamous Cruelclaw deals combat damage to a player, exile cards from the top of your library until you exile a nonland card. You may cast that card by discarding a card rather than paying its mana cost.