Honestly. I think the best cheat for this would be:
No knockback/knockdown. Those Goblin combos are terribly hard to beat, they swarm at you with melee goblins forcing you to deal with them, all the while the archers keep shooting at you knocking you down for a short while and wasting your spells, only to have the bombardiers throw a bomb near you and blow you off screen into your doom.
use the wind to blow the bom back to it
So far i found over 100 defrend using the best is laser - frost - electro beam. heal and rock will lay some healing eggs arround you if i need walk in your eggs to heal.
If only I could. Thing is, that the archers knock me down and stun me for several seconds, allowing the bombardiers to blow me away.
And it's not Life+Rock but Lots of Life+Shield, and then either casting it as an area effect to surround yourself with healing "mines", casting it normally to have a few health-mines to your front, or enchant your weapon to have it lay a row of health-mines.
Combining Earth+Shield+Life just gives a stone barrier with green ring around it that does nothing.
Anyone knows what Life+Shield does when cast on yourself? the others (except Earth) give you an aura of protection against that element (and Earth just encases you in a rock), but it's not like you need protection from healing, do you? :P