Yeah. Without the stupidly difficult counter-attacks, this game would be far too easy. Besides, it's not as if you lose the entire game after one defeat. Just keep having a go with different combos.
For Cave 5 //
Use Dwarves, Archers, Witches, Fire Succubus, Mermaids and Phantom Armours. //
For spells, simply use Comet Shoot, Invincibility and Lightning Bolt. Add your own, like Freeze and Heal to aid yourself in tight spots. //
// To win:
1. Keep all of your units at your castle. Do NOT send any units out to the opponent's castle. /
2. Every so often, shell the increasing stack of Bombers in the middle of the map with any spell. /
3. Aim a Comet at the very far right of the map. This will cause their hero to attack you, but not affect the damned Goblin. /
4. Once you have all units, launch a collossal seige upon their castle. /
5. Keep an eye on the Goblin. It should be pushed back by pretty much every attack against it, but if it starts it's own attack-animation, use a quick bolt to prevent a massacre. /
6. All being well, you should completely merc the opposition.
Halo 3 Fans and classical music lovers alike http://c.wrzuta.pl/wa9942/dc503fc60001e9af4924871a/0/halo%203%20-%20never%20forget.mp3 This is 'Never Forget' by Martin O' Donnell. Enjoy. Absolutely beautiful piece.