Nobody can win this battle with no loss. No loss just mean no loss after resurrections.
Your battles descriptions are funny, even more when they remind me the misfortune I could face in this battle.
That is just normal stuff for this battle. The key points are:
- Manage Necro call restoring enemies stack. Those can come from the crystal if the stack was a Karador stack. Or the two Necromancers will do necro call on any stack.
- Manage Karador spells, particularely fear and hypnotize when possible.
- Manage long range attacks, from Necromancers and big Skel-Archer stack.
- Manage close range and very strong stacks, typically, Black Knight and even Skeleton or Undead Spider.
- Manage the barriers.
There are various way to manage this fight but the key point is the first, you need have a way to manage enemy necro call. There are different tools to do it:
- Using Ice Thorn is an excellent way, but not have it ready when you want is a danger and sometimes they could be attacked and then free the dead stack.
- Moving on a dead stack seems a bit basic but can be useful in many cases.
- Using Thorns so they could use dead stacks to summon thorn. For that, Dryads or Royal Thorn can do the job. This is complex to use in practice but can work very well.
- Use yourself Necromancers so they can cast Necro call.
- Cast Necro call yourself. Because it uses mana and make you use your spell in the round, it's more the last choice but can be very handy.
- And the last but no the least tool against enemy necro call is just to avoid kill enemy stacks but attempt only to reduce them a lot until you get a good position to end the stack and avoid necro call.
The last tip is certainly a key to make the fight more easy. But Necro call is only one problem. Another disturbing problem is managing fear and hypnotize from Karador. There are various tricks against that:
- Use units immune to mind spells.
- Have a unit immune to mind spell have the initiative right before other non immune units. This will allow you cast dispel before you feared/hypnotized units move.
- Avoid units skip their turn this won't let Karador cast a spell on them before end of turn.
- Have your unit with the highest initiative be a unit immune to mind spells.
- Use summoned thorns, at some point they often take Karador busy to cast slow on them at almost each round.
Strong close range units can also kill your fight if they come in contact too soon. Again there are various tricks like:
- Ice Thorns, very efficient.
- Using summon you can summon a lot like thorns from Dryad or Royal Thorn.
- Cast slow.
- Few traps can be handy.
- Use a fast flying unit like dragon to attract them elsewhere, that's not so easy to apply but that can be very efficient.
- Use wall.
- Avoid destroying the initial door walls.
Karador long range are your first hard point to manage. Here few tricks that could make it less ugly:
- Use blind, but take care that last only 2 rounds.
- Use target and close contact a necromancer stack. This stack will just do the standard attack and the second stack will hurt all enemy close. Take care that if your target is too exposed it won't last long enough even with a high protection. The best is certainly use this with a fast flying unit like dragon.
- Attacking the long range asap is your first concern, so take care have some efficient long range like Inquisitor or even Priest. Cannoners should also work well. And summoned thorns can give a handy help.
For a green dragon stack alone that's always the same tactic, I never used this so don't know he details but overall, use its mana source talent for restoring mana, use spells to destroy enemy, use invisibility to avoid attacks, use time back to restore your stack.
Last point, that's a lot of word but only a part of tricks on how to manage better this fight.