Entropy, Hero of Decay

Artifact spells you cast cost {1} less
{2}{b}{t} - Destroy target non-enchantment
permanent.
{3}{u}{t} - Make target permanent indestructible
until the start of your next turn.
{1}{r}{t} - Draw a card and then discard a card. If
you discard a artifact with a red mana cost, untap Entropy .