Glacial Chasm [Ice Age] Fightning[x2] flip a coin until you

flip a coin until you lose a flip

the war between Urza and Mishra made Dominaria itself a casualty of war

Primordial Hydra has trample as long as it has ten or more +1/+1 counters on it

They found something far greater

Whenever Archon of Cruelty enters the battlefield or attacks

Glacial Chasm [Ice Age] Fightning[x2] flip a coin until youSet: Ice Age Type: Land Rarity: Uncommon 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.