Infernal is too weak

[Lezowski]

In contrast buying the Infernal has these advantages:
-5,000 HP More ||| (Worth about 6,250 gold in Hulls)
-15 Move Speed ||| (Worth about 300 gold in a speed pack)
-Chaos Teleport ||| A skill with a teleport (3,000 Gold), 1,750-8,750 burst damage, and 2.5-12.5 seconds of stun.
-Chaos Wave ||| A skill 500 Damage/target, 500 - 2,500 burst damage more to heros (And thousands when you account for additional creeps, buildings, etc.)
-Infernal-Fire Rain ||| Covers more than x5 area that Blizzard has (900 YD Radius), deals 1,120 more Damage/Target (6,400 Damage/Target), 30% movement debuff (Blizzard stops mobility), can manipulate affected area by moving (Blizzard is Channeled)

From raw value in HP/Movement/Teleport that equates to about 9,550 gold, and from skills you are gaining a variable amount of damage (~1,500 to <10,000)... Is this worth paying 5,000-17,000 (29,000 if you wanted to buy it right away, but who does that) more in gold for this tank?

IMHO, if I'm taking a side-lane and fighting a 1v1, I'd take the Frost Bot and use the extra money to buy a weapon instead; however, towards the end of the game when the game forms into a team battle/base siege, the ability for the Infernal to dish out tens of thousands of AoE damage and some extra stuns is invaluable. I'd take it in a heartbeat over the Frost Bot. - I think it's fine the way it is, each tank has its niche use, which is how things should be - otherwise certain tanks would never be used.

Please don't compare chaos-teleport to teleporter, they aren't in the same league. Also, who would chaos teleport into a group of 5 tanks? Sure, you might get 2 or 3 in one casting, but it doesn't make up for the many times you miss. The extra speed isn't any better than frost aura. It has more hp obviously, all bigger tanks have this and it isn't specific to Infernal. Maybe you should consider the extra amount of gold you need to shell out for armor upgrades?

Don't bring creeps into the argument of a tank's spells. Especially an end game tank, what good are creeps then other than meat shields? I'm talking about raw tank killing power, which the infernal lacks for such a high cost. A buff to its spells wouldn't hurt, titan will still be better than it in most ways possible and sky fortress will still be able to do its thing. I think Chaos Waves is especially weak.