Defense of the Heart [Urza's Legacy] Shadows over Innistrad Tokens "The Knowledge Pool knows

"The Knowledge Pool knows

Set: Mirrodin Type: Instant Rarity: Common Cost: {2}{R} Add {R}{R}{R}{R}{R}

Set: Beta Edition Type: Enchantment — Aura Rarity: Rare Cost: {B}{B} Enchant artifact

{T}: Untap all Forests and all green creatures

there is an additional combat phase followed by an additional main phase

Defense of the Heart [Urza's Legacy] Shadows over Innistrad Tokens "The Knowledge Pool knowsSet: Urza's Legacy Type: Enchantment Rarity: Rare Cost: {3}{G} At the beginning of your upkeep, if an opponent controls three or more creatures, sacrifice Defense of the Heart, search your library for up to two creature cards, put those cards onto the battlefield, then shuffle.