Now that I'm done with the creatures from other realms, Nature suddenly seems not as good as it should be at medium power creatures!
War Bears - For 55 these are not bad, while their damage output is not as good as Hell Hounds and for higher mana, their 5 armor is quite valuable in the early game. I would give them +1 melee anyway, to compensate for improved halberdiers.
Sprites - These are great, no other realm has flying ranged units this early. No change needed.
Giant Spiders- This is effectively Nagas without the First Strike and water walking. Instead they have Web which you normally can cast yourself anyway. And on top of it, they cost more than Nagas and are 1 higher rarity. 1 extra figure does not really help to make them look attractive, or outstanding. Having two other "resist or die" units in the same rank escalates the problem and makes these even less useful or interesting. Missile Immunity (using webs to block incoming arrows makes some sense) and 1 more movement could make them a bit more unique and grant them an anti-bowmen role. Additionally, the current stats are only suitable for a common creature, this is uncommon so it should at least have 6 melee and 5 health per figure. (or more if cost gets raised)
Basilisk - Stone Gaze -1 is the big thing here, having a chance to kill enemies prior to an incoming attack. Unlike most other gaze based creatures, this actually has stats to fight as well. While the 30 health is suitable for a high-end uncommon nature creature, the 18 melee with +1 to hit feels weak, at a cost of 325. It fights as well as a Fire Giant but costs 2.6 times as much for 1.66 times the health. The gaze is more situational (although potentially more powerful) than the Giant's ranged attacks and fireball as well, and the Giant also has Fire Immunity and Wall Crusher. I believe this should have +2 to hit instead of +1 and cost less, 250-275?
Cockatrices - This one has inferior stoning and durability compared to Chaos Spawn. Although slightly less costly and faster, as well as being uncommon. I'm fine with the stats it has, but cost should probably be 200-225.
Stone Giant - I believe this one is mostly fine due to the extreme armor it has, making it nearly invincible against multifigure normal units. Don't think any other realm has heavily armored units that fire rocks the only type of ranged attack that immunity does not exists for.
Gorgons - Hard to judge this one. It has a quite potent gaze, has health and damage output slightly above Basilisks, and it even flies. Being the fourth resistance based Nature unit, and one that isn't all that outstanding in gaze strength at this rarity (Chaos Spawn and Night Stalker have either better gaze or better abilities paired with it and they both cost much less), I think this creature could use a new ability to make it more interesting and useful, as well as a small stat boost (+1 health and +3 melee per figure). I don't have any good idea for an ability though, the only nature-like ability, regeneration would be probably far too powerful on these. As the help text says they are "frightening to behold", Cause Fear could be an option, but would be somewhat redundant being another resistance ability (and one of an opposing realm...)
Colossus, Great Wyrm, Behemoth - These are powerful enough for sure.
War Bears - For 55 these are not bad, while their damage output is not as good as Hell Hounds and for higher mana, their 5 armor is quite valuable in the early game. I would give them +1 melee anyway, to compensate for improved halberdiers.
Sprites - These are great, no other realm has flying ranged units this early. No change needed.
Giant Spiders- This is effectively Nagas without the First Strike and water walking. Instead they have Web which you normally can cast yourself anyway. And on top of it, they cost more than Nagas and are 1 higher rarity. 1 extra figure does not really help to make them look attractive, or outstanding. Having two other "resist or die" units in the same rank escalates the problem and makes these even less useful or interesting. Missile Immunity (using webs to block incoming arrows makes some sense) and 1 more movement could make them a bit more unique and grant them an anti-bowmen role. Additionally, the current stats are only suitable for a common creature, this is uncommon so it should at least have 6 melee and 5 health per figure. (or more if cost gets raised)
Basilisk - Stone Gaze -1 is the big thing here, having a chance to kill enemies prior to an incoming attack. Unlike most other gaze based creatures, this actually has stats to fight as well. While the 30 health is suitable for a high-end uncommon nature creature, the 18 melee with +1 to hit feels weak, at a cost of 325. It fights as well as a Fire Giant but costs 2.6 times as much for 1.66 times the health. The gaze is more situational (although potentially more powerful) than the Giant's ranged attacks and fireball as well, and the Giant also has Fire Immunity and Wall Crusher. I believe this should have +2 to hit instead of +1 and cost less, 250-275?
Cockatrices - This one has inferior stoning and durability compared to Chaos Spawn. Although slightly less costly and faster, as well as being uncommon. I'm fine with the stats it has, but cost should probably be 200-225.
Stone Giant - I believe this one is mostly fine due to the extreme armor it has, making it nearly invincible against multifigure normal units. Don't think any other realm has heavily armored units that fire rocks the only type of ranged attack that immunity does not exists for.
Gorgons - Hard to judge this one. It has a quite potent gaze, has health and damage output slightly above Basilisks, and it even flies. Being the fourth resistance based Nature unit, and one that isn't all that outstanding in gaze strength at this rarity (Chaos Spawn and Night Stalker have either better gaze or better abilities paired with it and they both cost much less), I think this creature could use a new ability to make it more interesting and useful, as well as a small stat boost (+1 health and +3 melee per figure). I don't have any good idea for an ability though, the only nature-like ability, regeneration would be probably far too powerful on these. As the help text says they are "frightening to behold", Cause Fear could be an option, but would be somewhat redundant being another resistance ability (and one of an opposing realm...)
Colossus, Great Wyrm, Behemoth - These are powerful enough for sure.