Kefnet the Mindful (Invocation) [Amonkhet Invocations] Unicorn 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

When Glacial Chasm enters the battlefield

"Time flows like a river

to whom can you pray

Her plans may yet bear fruit

Kefnet the Mindful (Invocation) [Amonkhet Invocations] Unicorn Sacrifice Engineered Explosives: Destroy eachSet: Amonkhet Invocations Type: Legendary Creature God Rarity: Mythic Cost: {2}{U} Flying, indestructible Kefnet the Mindful can't attack or block unless you have seven or more cards in hand. {3}{U}: Draw a card, then you may return a land you control to its owner's hand.