Glacial Chasm [From the Vault: Realms] 65 When Necromancy leaves the battlefield

When Necromancy leaves the battlefield

"It has latched onto this place like an infestation

they tap all lands with mana abilities they control and lose all unspent mana

/ Where Sleeping Dragon unveiled Han's partition:

Starving and worn

Glacial Chasm [From the Vault: Realms] 65 When Necromancy leaves the battlefieldSet: From the Vault: Realms Type: Land Rarity: Mythic Cumulative upkeepPay 2 life. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) When Glacial Chasm enters the battlefield, sacrifice a land. Creatures you control can't attack. Prevent all damage that would be dealt to you.