Defense of the Heart (ULG-100) - Urza's Legacy Number_BT2-065 Keeper of Secrets deals damage

Keeper of Secrets deals damage equal to that spell's mana value to target opponent

When Uro enters the battlefield

Spend this mana only to cast a Sliver spell

(It's an aura with "If your hero would be dealt arcane damage

Card TypeLegendary Creature — Insect Wizard

Defense of the Heart (ULG-100) - Urza's Legacy Number_BT2-065 Keeper of Secrets deals damageCasting Cost Card TypeEnchantment RarityRare ArtistRebecca Guay Legalities NOT LEGAL Standard NOT LEGAL Future LEGAL Historic LEGAL Gladiator NOT LEGAL Pioneer NOT LEGAL Explorer NOT LEGAL Modern LEGAL Legacy NOT LEGAL Pauper LEGAL Vintage NOT LEGAL Penny LEGAL Commander LEGAL Oathbreaker NOT LEGAL Brawl LEGAL Historic Brawl NOT LEGAL Alchemy NOT LEGAL Pauper Commander LEGAL Duel NOT LEGAL Oldschool LEGAL Premodern LEGAL Predh At the beginning of your