Hey Arctic Wolf, I'll do my best to critique your latest version of Nihilous. To be clear, this is the third phase version still right?
O Time's Erosion • Aura 100
All resistances and immunities to damage and effects and bonus' to saving throws are ignored while inside this aura even if Nihilious is conscious or not. All effects that bring a character back to life do not work and no character can benefit from another character's effects, including flanking.
On a battle map an aura 100 works out to over 8 square feet. This aura shuts down all resistances/immunities, save bonuses, and raise dead. Since I think this is the third phase of an endgame boss that's fine.
Master of Time
Nihilious can spend action points regardless of whose turn it is as an immediate interrupt. In addition. Nihilious gains combat advantage against any enemy that is slowed. When he has combat advantage he can get a critical on a roll of 18-20.
This is really 2 separate traits, the second which is fine, the first is very strong but probably ok so long as he is strictly limited to 2 or 3 action points for the whole fight.
Time's Reward
Whenever Nihilious rolls a natural 20 he gains another standard action for his next turn. This effect cannot happen more than once per round.
That works. For bookkeeping I'd just give the extra action then and there rather than next turn.
Accelerate Time
At the start of Nihilious' turn, all effects are automatically saved against. In addition, at the beginning of each person's turn, Nihilious immediate reactions refresh.
This one is over-powered. Auto-save against everything no questions asked? I recommend granting him saves at the start of his turn instead (remember as a solo he gets +5 saves). Whyd you take his actional denial prevention to such an extreme?
I like what you're doing with the immediate reaction/interrupt refreshing. That one a bit harder to balance without seeing in play...
Timeline Blade Empowerment • At-Will
Effect: Gains new powers in place of his orginal ones based on the blade he picks up.
Er, you don't mean you're replacing *all* his powers each time he picks up a new blade I hope? I thought swapping out one power was sufficient, easier for you to keep track of that's for sure.
(bm) Time-Stealing Blade (martial) • At-Will
Attack: +40 vs. AC
Hit: 4d10 + 13 damage and the target loses a minor action. Nihilious gains an additional minor action on his next turn. If this attack is a critical, instead of gaining a minor and standard action, Nihilious gains an action point.
I put in red the part that I dint understand. Reread it and you'll see what I mean.
R Sphere of Ultimate Destruction (necrotic) • Recharge Nihilious bloodies a target.
Attack: Range 10 (One Creature); +39 vs. Fortitude
Hit: 8d10 + 11 necrotic damage and the target cannot benefit from healing surges (save ends). If this attack kills the target, Nihilious gains combat advantage against the party for the rest of the encounter. Until this effect fades, the target looks like an older version of themself.
Nice, this one feels nasty. I haven't seen an ongoing damage powers on this version yet, and this would be a great place to add a modest amount.
Wrinkle in Time • At-Will
Effect: Nihilious can treat any square on the field as an adjacent square when it comes to moving.
Effectively this give him unlimited teleport. I'd say for a hardcore skirmisher this is a *maybe* at best. For your guy as a controller I don't think it makes sense...unless coming up with a way to pin him down (and negate this ability) is a puzzle nested in the combat?
Rewind Time (arcane) • At-Will
Attack: Range 10 (One zone, area effect, or beneficial effect); +39 vs.Will
Effect: Nihilious can dispell one zone, area effect, or beneficial effect on a target.
He just became AoE controller's nightmare. And an Ardent's nightmare too. I like it.
Withering Existence • At-Will
Attack: Range 10 (One Creature); +39 vs. Fortitude
Hit: The target takes 10 ongoing necrotic damage and is slowed (save ends both). Each failed saving throw will double the ongoing damage and the target appears to be aging rapidly while under the effects.
Ah here's some ongoing damage! I really like how you've designed it
Time Stop • At-Will 2/round
Trigger: A slowed enemy attacks Nihlious.
Effect (Immediate Interrupt): The enemy's turn is now over and they are no longer slowed.
To be clear, is the only way PCs can becomes slowed in this fight is if Nihilous uses "Withersing Grasp" on them?
If so, then this power is fine as is, but probably won't come up more then a few times.
If not, and you intend slow effects to be more prevalent, this power is probably too much and should be an immediate reaction instead.
Overall nice job!