Imperial Seal is a Sorcery while Vampiric Tutor is an instant. A pre-emptive response: Imperial Seal is in a set that was very difficult to get hold of...so thats why it is worth significantly more money.
"Sufficiently advanced experience is indistinguishable from clairvoyance." -Carsten
"Ah those eyes, those horrible creepy eyes!" -Chaosof99
DCI Level 3 Judge & TO "I do not consider myself a hero. I know only what the Vec teach:
justice must always be served and corruption must always be opposed."
Go read! I am one of the three authors of Cranial Insertion.
But seriously, if you can't remember "Woapalanne", just call me Eli.