Choose Chaos Desert wizard. Get a additional high and low, then additional bolts and burn. Max all these out, as well as damage, normal high and low attack and defence, and get heaps of mana. After five turns through any battle you will be able to do all of these at once you will be able to take off around 7000 damage with no shields, with full defence you will be able to take off about 900. Watch out for absorb because it will absorb all your power and kill you not matter what. Using this i got all badges.
Be the chaos desert
Get burn, more low, more high and additional bolts
Max them aswell as high and low attack
If you use them all together you can take off upto 6000 health per move.
okay once you get to about 50km/h, jump, out of the screen you still get bonuses for gates, just keep jumping, at 110km/h you can get 10 gates without being in the screen.