Deploy all wizards near air defense. Use a heal spell if necessary.
After air defense has been destroyed, deploy healer(s).
Use archers to clean up outside structures.
Watch the wizards take out the village.
(No execution notes)
In this strategy you can wipe enemy's base from outside-in without much difficulty. Since wizards deal long-ranged attacks, you can deploy the healer right from the start if the enemy's air defenses are in the first layer of walls (this gives your wizards an edge over enemy's splash damaging capabilities). However, before you attack, you should try to find 2x2 open spaces as possible. Giant bombs of any level can destroy wizards of any level, and this is the major weakness of this strategy.