Channel [Alpha Edition] 191a Set: Collectors' Edition Type: Creature

Set: Collectors' Edition Type: Creature — Elemental Rarity: Rare Cost: {2}{G}{G}{G}{G} Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking

if that creature was destroyed this way

Perhaps history will remember me in some small part for my work

Set: EX: Delta Species Type: Colorless Rarity: Uncommon Retreat cost: Colorless

that source's controller sacrifices that many permanents

Channel [Alpha Edition] 191a Set: Collectors' Edition Type: CreatureSet: Alpha Edition Type: Sorcery Rarity: Uncommon Cost: {G}{G} Until end of turn, any time you could activate a mana ability, you may pay 1 life. If you do, add {C}.