i need some advice about decks. i have a wizard level 43 and i don't know what spells i should put in my deck
My Life wizard back then was not to bright and carried around a full deck of spells. I later found as I got though Mooshu to lighten the load a lot and it's more productive.
Experiment with different set ups to match your play style. Mine was hit and run so a few blades, traps, Centaur and Shepras (angels) where all I really needed. I threw in a Leprechaun for finish ups. Don't for get a 2 pip fairy.
For boss fights I had trained death to feint and put a few in for boss fights.
You need to judge the damage needed by the areas you are in and only carry that amount of damage in your deck.