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This race isn't just decent; it's excellent! (Am I being subjective? YES!!!=)))))
Some have said that the individual creatures are good, but they're only mediocre as a whole. I slightly disagree...
Individually, they are decent, but when combined with the resource costs, building costs (for the Crystal Castle, there's a resource storage that provides +1 crystal, but the Rampart, for example, doesn't provide any gems, sulfur, mercury, or gold), hero skills and stats, magic, and growth, they are among the strongest...
And the already decent overall health of the units is further enhanced by the defense of the ranger heroes without significantly sacrificing attack power (although sometimes there could be more mana, of course).
The Pegasus were unfairly nerfed – their numbers still give them a chance to successfully counter ranged units up to level 4, blocking them in melee combat – it's a shame to send dragons against some ranged units or orcs with magi... if the enemy doesn't have serious ranged units and dark creatures, then the Rampart's main strength is used: active defense: elves are driven into a corner, surrounded by dwarves, dendroids, and centaurs if there are many of them. The incoming "superman" is blocked by dendroids and engages in a pointless struggle with them in one spot. And few will decide to spend 2 fast units to attack 1 stack of elves – there are more important things to do.)))
Also, if the enemy doesn't have dragons or phoenixes, they won't be able to attack the elves at all (the enemy's ranged units are blocked by the suicide Pegasus, not for long, but that's enough), and the dwarves and dendroids can withstand any attack, even from archangels, with comparable growth and development of the creatures... and they can even retaliate.)))
Golden dragons and unicorns are the attacking force; they can be used to run and fly depending on the situation....
The Rampart is the magic of earth and water. Slow and explosion are strong even without much magical power; you just need enough mana...)), and if you don't develop the hero's magic resistance skill, you can try prayer or clone on your monsters – no further comments needed.