Kabradez, Witherling

Spells you cast cost X less to cast where X is a quarter of the difference of your life total to your starting life total, rounded down.
Imhotep Kabradez, Witherling has Indestructible as long as you have 30 or less life, Shroud as long as you have 20 or less life and Shadow as long as you have 10 or less life.
As long as you have 1 or less life, creatures you control have myriad and whenever you cast a spell, copy that spell for each opponent you have. You may choose new targets for the copies.