Channel [Alpha Edition] Dark Ascension Promos Sacrifice Engineered Explosives: Destroy each

Sacrifice Engineered Explosives: Destroy each nonland permanent with mana value equal to the number of charge counters on Engineered Explosives

and Rofellos to hone their spellcasting in tandem with more physical disciplines so that both would be improved

Set: Betrayers of Kamigawa Type: Legendary Creature — Spirit Rarity: Rare Cost: {6}{G}{G} Snake offering (You may cast this card any time you could cast an instant by sacrificing a Snake and paying the difference in mana costs between this and the sacrificed Snake

all for one

When Thought-Knot Seer leaves the battlefield

Channel [Alpha Edition] Dark Ascension Promos Sacrifice Engineered Explosives: Destroy eachSet: 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}.