Spectacles, Mother of Abjury

Spectacles takes half damage from all sources.
Any time this creature's controller casts a spell,
add 1 Abjury counter to Spectacles.
{t}, Remove 2 Abjury counters to prevent all
damage to target creature until the end of turn.
{x}{u}, Counter target spell with converted mana
cost of X or less.
{x}{x}{r},{t}, Deal X damage to X target creatures.