Mar, Disciple of the Deep

First Strike
When Mar, Disciple of the Deep enters the battlefield, create a Legendary Artifact Token
called Tome of Shadows with "Instant and
Sorceries you cast cost {1} less to cast" and {t}, Permanents you control gain Hexproof until
end of turn.
{t}, Remove target attacking or blocking creature
from combat, then draw cards equal to it's power.