Hello everyone and welcome to my 205th analysis, this time featuring Xiron the Ruby.
Xiron has a ton of features that allow him to become one of the most powerful monsters of all time: 3509 Speed outspeed most deniers, his trait is a fusion of Possession immunity and Tough which is amazing, but most importantly, he has some moves that deny in an unusual way. These moves deny enemies by applying two random control effects to them - control skills means deny effects, including 2 turn Possession and Mega Stun. This outclasses almost all deny moves to date because it is very difficult to resist two deny effects coming your way. What's more, he's in the Spirits book, and has a single target skill that activates CDs. This is significant since another overpowered monster, Samael, is there, and Xiron the Ruby(specifically this one) it the best counter to him. Notice how I trivialized his single target 100% Stamina drain just because how ridiculous his other moves are. I'd say his low Strength is his weakness, but one of his AOEs applies Ignite, plus another of his AOEs has 55 Base Power. Also, Strength doesn't matter on such an outrageously strong denier. This is definitely a candidate for the most powerful monster, and if you're going to spend money on a monster your best choices are this guy, Samael the Plague Carrier, and Zyla the Faithful.

-Laying Odds
-Ruby Explosion
-Total Exhaustion
-Mineral Blood/ Ruby Implosion
Runes: 3 Speed
(If you have all Group 3 moves learned on a Nemesis monster at the same time, the next time you'd normally learn a Group 3 move, a Group 4 move will show up instead. Using this method it's possible to have 2 Group 4 moves on a level 100 Nemesis, by replacing the 4th move you have with the Group 4 you're offered, then replacing one of the Group 3 moves with the other Group 4.)

Laying Odds has 55 Base Power which would be insane for an attacker, but Xiron uses this as a deny move since it also applies Stamina Leak and two random control effects to all enemies. Ruby Explosion has a lower Base Power, but it is Fire based and it applies Ignite to all enemies, plus two random control effects. Total Exhaustion removes all Stamina points from the target. Finally, Mineral Blood activates all CDs on a single enemy, making it great against Samael and Artifact monsters. However, if you have him at only level 100, then Ruby Implosion is the best replacement to give him a single target version of Ruby Explosion that has more Base Power. 3 Speed is necessary on a denier.

Teammates: Anything goes.

Countering Xiron the Ruby: This is very tricky to accomplish since he is very fast and his deny method is insanely powerful. Faster deniers like Krampus and Jasastur have the best chance at beating him, though they have to get past his trait first. Metalisha can give the turn to an allies VoltaiK/Zyla and he/she can kill Xiron. Magic Llum has the same Speed as Xiron and is amazing at controlling buffs/debuffs, and her Bulwark is good at blocking status effects. If she gets past the status effects or wins the Speed tie, she can beat Xiron by Blinding him or removing all negative effects from her team. She can get her CDs activated, but that means Xiron wasted his turn to stop only Llum.