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...As usual, here are my personal opinions on all level 6 creatures:
- Champions – not the strongest unit, but quite fast and with a cavalry bonus, which makes them a decent choice.
- Nagas – good health and an overpowered attack (higher than that of Death Knights!) pose a significant threat. But fortunately for the Tower's opponents, they are quite expensive. And not very fast either.
- Ifrits – weak health, not very good defense... But I've always been afraid of them because their fire shield can cause a lot of trouble.
- Wyverns – terrible health. They die like flies. But they are fast, poisonous, and there are usually many of them, so they overwhelm with numbers.
- Unicorns – good health, somewhat weak stats, but they can blind the enemy and take them out of action for a long time. In my elven opinion, a good unit, and very cheap.
- Manticores – health is slightly better than Wyverns, but they are just as fast and annoying. If Wyverns poison, then Manticores paralyze, which is no better than the Unicorn's blinding. A weak unit, IMHO... but very cute :)
- Cyclops – weak health and defense, they should theoretically be taken down easily, but... I don't think the opponent will reach them, being pelted with stones along the way. Archers need to be protected, especially those ones ;)<
- Death Knights – overpowered. Good health, stats, speed, plus a curse (an annoyance no less than poisoning), plus they can also strike with double damage! Only their high price and the weak dragons of the Necromancer save them from being labeled as overpowered.
- Magic Elementals – immunity to magic, an attack that hits all enemies and no retaliation nicely compensate for their weak health. And all this at a reasonable price... not bad.
So, despite the obvious strength of Death Knights and Nagas, I prefer Unicorns – stable, solid infantry at a low cost (although I can sing praises to anyone, as long as they belong to my favorite race ;) ). But in principle, all level 6 creatures are good, and each has its own obvious advantages :)