To be honest, the ultimate granting Anticipation to all allies and gives an enemy one extra turn is a good counter to enemies with anticipation, rather than it being like Nishant's Bodyguard or Metalisha's ult where it gives their team an extra turn straight away, triggering enemy anticipations 3 times. I like the concept... BUT, I feel it's a little too unnecessary to do that when it can just be a trait disable instead of curse or something better. I would say this is way too overpowered due to this monster having 4 extra turns which are most likely to be used for endless attacks and a cycling reset. There's no need for the literal torture of letting the enemies get their turns to execute the match.
With this ultimate, for those who use VoltaiK still, an extra turn spamming monster with a 0 turn cooldown skill that grants an extra turn, this is a little too much. It's clear that VoltaiK is an easy opponent now, but this makes him completely useless if Nitroblaster on the other team uses its ultimate. In my opinion; it would be better if his ultimate was just like a common attacker ultimate being at least 55 - 90 damage AoE attack skill with torture, control or other negative effects to be the sprinkles on the cake. With that power, I would say at least around 55 - 70 power of an ultimate attack.
I also suggest for the relics to be different since this monster isn't really a tank, but will contain a lot of unnecessary and obnoxious healing. With the power of mutant runes boosting its stats, it would be effective, but I feel that Nitroblaster at least needs a sword relic instead of the amulet or armor relic. With these relics, it's easy to recover stamina just from using bronze relics which isn't hard to get for any players, thus giving them the ability for an constant attacking Nitroblaster. Of course not everyone most likely wouldn't use full extra turns on Nitroblaster due to a lot of anticipation opponents, but there are some defense and offense teams that does not contain any anticipation. This gives many players with Nitroblaster easy earned wins. With Nitroblaster being a mechanical anticipation monster, in mechanical wars, there aren't any anticipations that are able to counter Nitroblaster BY FAR. This will just make everyone who uses Nitroblaster able to dominate the mechanical book during wars.