Arthall Oryxius, Grand Mage

Hexproof, Prowess
{1}{u}{u}{t}: counter target spell. Put a number of Arcana counters on Arthall Oryxius equal to the spell's converted mana cost.
{1}{r}{r}{t}: Arthall Oryxius deals combat damage to target creature equal to the number of Arcana counters on it.
{t}, Remove X Arcana counters from Arthall Oryxius: search your library for an instant or sorcery spell with converted mana cost X and cast it without paying its mana cost.