There are quite a few cards, that dominate the meta game and completely prevent variety in the PvP environment. Only Fire and Shadow T1 are viable once people reached a decent level and that is quite unpleasant. We are in a turret T1 meta, where Frost and Nature can't compete. Turrets do have insane damage and tankiness, higher range and don't reward micro management at all.
-> 900 damage for 60 power is way more than any T1 unit could offer. Due to the splash you can take center wells vs Frost and Nature without any advantage.
-> Even after the teleport 900/600 stats remain insane especially since there are no Siege units in T1.
-> 40m range can force you to engage into the turrets as they can be placed at the edge to attack your power wells while your units can't reach them.
-> Even Fire T1 can't beat Phasetower without stationary turrets itself, which is a disaster as Fire should be the faction, that can deal with turrets. The most reliable counter to Phasetower ... is Phasetower.
-> 50m teleport range every 30s is faster than some Frost units (you can kite activated Imperials with Phasetower ...)
-> Archers are sometimes bugged against Phasetowers. Their damage rotations apply about 2 seconds later (probably as the projectiles travel to the initial position of the tower). This makes it much harder to burst down aggressively placed turrets with your ranged units.
-> While other turrets are risky and require initial map control and safetly to be built, Phasetower can be constructed at a much more safe spot and Teleport into the important areas or just jump over cliffs to remove some natural safety provided by the map.
-> 1575/700 stats for 50 power is still viable in some T3 scenarios (this may be slightly exaggerated as it requires all shots to hit)
-> if splash is included, the tower has a 55m range, which gives huge zoning potential, strong siege potential for close well situations and can be abused over cliffs.
-> Center Well + Mortar is gg against Frost on map control based maps and forces nature to play more aggressive unit compositions, that are weaker in combat
The Frost nerfs
-> After Ice Guardin and Homesoil got nerfed Frost requires at least 8 T1 slots in order to stay relevant.
-> Map Control issues still may kill the faction as you can't rush against Mortar
-> Frostmagespam outperforms IGs on big maps in mirror matches and against nature. That results in stationary gameplay that is quite boring to play
I personally would like to see harsh nerfs to Phasetower & Mortar in the future & maybe a revert of the IG nerf as it is more micro rewarding than a homesoil revert. Feel free to discuss!