The first technique might sound more like a guide and is about the pet "Fluxfire Feline" and it's oneshot capability:
1. Use "Wind-Up" to charge
2. Use "Supercharge" to buff next attack
3. Use "Wind-Up" to perform it's attack and see numbers that are about 2k and dead opponent.
The math is easy: Wind-Up dmg is about 750+ Wind-Up buff is 10%, Supercharge buff is +150% of overall dmg so we have
(750 * 1.10 ) * 2.5 = 2062,5
The second case is an exploit about abilities like Fluxfire Feline's "Wind-Up" or Aqua Strider's "Pump" that will kill even undeads and mechanicals through racial if it's enought damage done. Another words, if undead or mechanical pet dying the first time from that kind of charging ability they will not resurrect.
This exploit works if ability does some overkill damage like 900 dmg to pet that left with 600/1700 hp.
This also can be explained by the damage count mechanic: if you ever pay attention to hp after resurrection of mechanical or undead pets, you have notice that hp is different from time to time and somehow depends on damage done from the killing blow (i haven't determined the exact formula yet). The exploit might be working becouse of overkill damage is counted as composite value and multiplier involved (the 10% buff on charge). Regular attacks do not seem to have capability to pass trough racial resurrection despite the damage they done or any multipliers, so only charging abilities.
Now have fan with that and do not forget to tame the Fluxfire Feline with speed higher than damage to attack faster then another Fluxfire Felines and much more other pets. You will have enough power to perform oneshots on 25 lvl anyway.
Made searches for: Fluxfire Feline, Aqua Strider, Wind-Up, Pump, Undead, Mechanical, racial, oneshot