Glacial Chasm [From the Vault: Realms]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.

But where is the source

Set: Portal Three Kingdoms Type: Creature — Human Soldier Rarity: Rare Cost: {4}{B} {T}: Destroy target tapped nonblack creature

Battleworn (If you defend with Hooves of the Shadowbeast

the Evening Star dies

their bones now molder

Set: Gym Challenge 1st Edition Type: Colorless Rarity: Uncommon Retreat cost: Colorless

join in brotherhood

" —Argent Etchings

Set: Sun & Moon: Forbidden Light Type: Fairy Rarity: Ultra Rare Retreat cost: Colorless

Set: XY: Generations Type: Lightning Rarity: Uncommon Retreat cost: Colorless

Whenever you play a land

Set: Tempest Type: Enchantment Rarity: Rare Cost: {2}{G}{G} Any player may cast creature spells with mana value 3 or less without paying their mana costs and as though they had flash