Jax, Grandmaster at Arms

Jax has +1/+1 for each equipment
attached to him.
Whenever Jax attacks search your library for an equipment card, reveal it, shuffle your library,
and put that card on top of the library.
{r}{w}{w}: Prevent all damage that would be
dealt to Jax this turn.
If Jax is blocked or being blocked
deal X damage to all creatures blocking Jax,
where X is half of the damage prevented.