Glacial Chasm
Land
Cumulative upkeep--Pay 2 life. (At the beginning of your upkeep, put an age counter on ~this~, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
When ~this~ enters, sacrifice a land.
Creatures you control can't attack.
Prevent all damage that would be dealt to you.
Solitary Confinement
{2}{W}
Enchantment
At the beginning of your upkeep, sacrifice ~this~ unless you discard a card.
Skip your draw step.
You have shroud. (You can't be the target of spells or abilities.)
Prevent all damage that would be dealt to you.