Glacial Chasm [From the Vault: Realms] Friday Night Magic 2006 Set: Portal Three Kingdoms Type:

Set: Portal Three Kingdoms Type: Sorcery Rarity: Uncommon Cost: {1}{R} Rockslide Ambush deals damage to target creature equal to the number of Mountains you control

Set: Dragons of Tarkir Prerelease Promos Type: Legendary Creature — Elder Dragon Rarity: Mythic Cost: {4}{B}{R} Flying

Statistically mind-staggering as it might seem

In turn order

Glacial Chasm [From the Vault: Realms] Friday Night Magic 2006 Set: Portal Three Kingdoms Type:Set: 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.