Skaven sorcerers are dealt spell cards from the Skaven magic deck at the beginning of the game. Deal to the higher levels of sorcerer first. Note that some spells can only be used by Grey Seers as indicated on the cards. If these spells are dealt to a Warlock they are returned to the deck and a replacement drawn. If no other spells are available then the Skaven must forgo the spell - only a Grey Seer can cast these sorts of spells.