Red Sun's Chosen

Commander creatures you own have Indestructible , "Whenever another creature dies, you gain life equal
to its power." and "Whenever this creature is dealt damage, you gain that much life."

Martyrs are implements of the gods, handpicked to
spill their blood in service of a divine cause. Such an
end is inevitable, for once a martyr is chosen, their
fate is fixed in the heavens