i haven't played the other "epic wars" but i tried this one and its really fun, also i find if you do new game plus its a bit to easy if you use all of your old cards at the beggining.
I really like the game, the new automatic spawning system really makes the battles epic. Controlling the units is simple, though I never really send only one unit type it is good to have the option. Like I said all ready the battles are really epic, I'd say atleast 50 or more units on the field at once. Battles aren't really hard, the revenge waves are more fun than challenging.
Something that isn't really a problem but annoys me is that your units are called cards. It just seems a little silly, since you don't actually play it out like a card game.
It is also a completely different game than ep2, which makes ep2 still playable.
Level 4 is really hard I retreated many times, from half HP of the enemy castle all the way back, and even my castle took some damage, finally able to stop the march of the 3 titans.
I didn't even had best hero to beat it (Now with grimtooth I have all the below spells with meteor replaced rain of arrows, for a total of 3490 mana).
I believe rain of arrows is better then meteor strike for beating cave level 4. Its huge area of effect, fast cooldown and the considerable size of the titans makes it perfect for damaging the titans.
For level 5, the defense against phantom goblin is tricky. Just don't use units that will sent the enemy flying (magic cannon, and some spells) you will be OK.
The last goblin titan is unkillable, unfortunately my magic cannon blasted the goblin titan past my main ranks and it headed for my tower, thankfully my goblins slowed him down and we killed his tower first.
I won it a different way. I replaced the magic cannon with black knight, and use athena protection before approach the enemy base. Once reinforcement arrived use fireball/ice to take out enemy bombers.
I tried all range that should be easy for anyone who wanna get that zeus wrath card in cave 5...
witch centaur archer mermaid fire succumbus dwarf engineer goblin
Rally in front of the enemy castle until you got full number of ranged units, then bring on the assult. Enemy goblins cannot hit you whatsoever, even tested using no spells. Just watch the counterattack gets decimated.
No magic cannon? Is it because it sometimes blast the enemy forward? Also, dwarf engineer has one of the worst range ever, and goblin isn't a ranged unit.
After you used zeus wrath, phoenix strike does insane damage, nobody survive except the titans. Freeze trap also make some crazy damage when zeus wrath is in effect, even titan units can lose over 30% HP on a direct hit.
I used witch, centaur, succumbus, mermaid, frost giant and dragon rider, complete with healing wave, comet, freeze trap, phoenix strike, zeus wrath and athena protection. I called 3 enemy titans (by quickly damage enemy castle to half health), those titans did not survived half way while I retreat.