Kokusho, the Evening Star [From the Vault: Dragons] Core Set 2019 Promos By isolating liquid aether at

By isolating liquid aether at room temperature

your opponents can't cast spells or activate abilities of artifacts

you'd need the energy of the giant's tonic

Set: Dark Ascension Type: Legendary Creature — Zombie Cleric Mythic Cost: {3}{B}{B}{B} Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it

where X is the converted mana cost of the exiled creature

Kokusho, the Evening Star [From the Vault: Dragons] Core Set 2019 Promos By isolating liquid aether atSet: From the Vault: Dragons Type: Legendary Creature Dragon Spirit Rare Cost: {4}{B}{B} Flying When Kokusho, the Evening Star dies, each opponent loses 5 life. You gain life equal to the life lost this way. The fall of the evening star never heralds a gentle dawn.