I managed to finish both Challenges, somehow finishing Necryptos-X2 in 1 go.
Its Boost increases by 15 every turn.
One of its specials nerfs your Boost by 25 for the whole battle, and has a chance to inflict a 9999-turn HP DoT and/or increase its Crit by 50, another has a chance to inflict a 9999-turn EP DoT and/or increase its Defense by 40. DoTs do not get stronger with time.
Goes into Overdrive if you buff your Boost, or nerf its Defense, massively increasing its Boost and Defense.
(First time, I outdamaged it, somehow dodging its OD-ed attacks twice.)
I depleted its EP, then did as much damage as I could before the DoTs kill me.
HD: Black Cat
FA: Charged Battle Staff NG47
BA: Lightning Mallet 45v
FS/BS: Salvaged Doublebarrels
Order: HD>BA, then
FA>FS>BS>BA until it runs out of EP,
FS>BS>BD>HD>FA (sorted by priority) until it dies.
Its only special ability is that it increases its Defense by 8 every hit.
Goes into Overdrive if you nerf its Bonus or Defense, increasing its defense to 300. It auto-caps to 80 if it has a defense nerf on it when this happens.
Just outdamage it with strong single-hit and/or accurate attacks.
In my case,
HD: Reaper's Lens
FA: Deluxeblade/O'Cloverblade for passives
Starts with 25 Boost, 50 Bonus.
Increases damage every turn.
Goes into Overdrive when its Boost/Bonus is nerfed or if affected by a DoT, massively increasing its damage or instakilling you.
Just another damage race.
< Message edited by v23 -- 1/21/2013 6:06:51 >