Sorcery conduit or draw sense low level won't work in this deck, because both vassal and cerberus are low level and spellcaster. You must use skill : draw sense light
I noticed that today and then I removed vassal since I couldn't figure out how to increase his damage and I don't have 'draw sense : light'
Today I got lucky and I think I improved a little bit..
What would you recommend to add/remove now
Thanks for reply bud.
You can use the skill Draw Sense: Light, if you have it, and still use GK on this deck.
In order to GK get atk 9k+ I don't know if it works, but you could try Gift Of The Martyr (dunno if it takes the original atk or not - I don't have it yet)