Calamity Diametric

Flying, flash
When you cast Calamity Diametric, for each {u} spent to pay for {u/r} in its mana cost, return up to one target nonland permanent to its owner's hand. For each {r} spent to pay for {u/r} in its mana cost, it deals 3 damage to up to one target creature or planeswalker.
{t}, Pay 7 life: Shuffle Calamity Diametric into
its owner's library. You gain 7 life.