As an additional cost to cast this spell, sacrifice an artifact. Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle.
When Resilient Khenra enters the battlefield, you may have target creature get +X/+X until end of turn, where X is Resilient Khenra's power. Eternalize {4}{G}{G}
Flying When Resolute Archangel enters the battlefield, if your life total is less than your starting life total, it becomes equal to your starting life total.
Cut it down, bury it in snow, put it to the torch. The rose will still bloom again.
Flying At the beginning of each end step, if you gained 5 or more life this turn, create a 4/4 white Angel creature token with flying and vigilance. {3}{W}{W}{W}: Until end of turn, Resplendent Angel gets +2/+2 and gains lifelink.
Flying When Resplendent Marshal enters the battlefield or dies, you may exile another creature card from your graveyard. When you do, put a +1/+1 counter on each creature you control other than Resplendent Marshal that shares a creature type with the exiled card.
At the beginning of your end step, if you gained life this turn, create a Blood token. Sacrifice two Blood tokens: Transform Restless Bloodseeker. Activate only as a sorcery.
Flash Flying When Restoration Angel enters the battlefield, you may exile target non-Angel creature you control, then return that card to the battlefield under your control.
"That which holds the image of an Angel becomes itself an Angel." —The Eleventh Doctor
Suspend 6—{W} Each player chooses a number of lands they control equal to the number of lands controlled by the player who controls the fewest, then sacrifices the rest. Players sacrifice creatures and discard cards the same way.
Creatures you control gain first strike and vigilance until end of turn. After this main phase, there is an additional combat phase followed by an additional main phase.