Reverse Damage [Unlimited Edition] Modern Masters 2015 and ponderings

and ponderings

Whenever you cast a creature spell with mana value 5 or greater

"This exhibition of Nehra's Threshold Principle must be expropriated and examined for its potential applications in enforcement

sacrifice it unless you sacrifice any number of creatures with total power 12 or greater

Set: Ugin's Fate Type: Artifact Rarity: Rare Cost: {1} Whenever another permanent enters the battlefield under your control

Reverse Damage [Unlimited Edition] Modern Masters 2015 and ponderingsSet: Unlimited Edition Type: Instant Rarity: Rare Cost: {1}{W}{W} The next time a source of your choice would deal damage to you this turn, prevent that damage. You gain life equal to the damage prevented this way.