Atlantean Mage

This creature costs {1} less to cast for each instant
and sorcery in your graveyard.
Instants and sorceries in your graveyard have
jump-start.
Tap four untapped wizards you control: Create a
blue X/X Phantom with "This creature's power
and toughness are each equal to the number of
instants and sorceries in all graveyards."