Quicksilver 
One-sentence summary of hero.
- Advantages
- Two turns to begin each round.
- Supersonic Speed gives multiple advantages.
- Has a high “crit” ratio.
- Useful in PVP and in tough battles.
- Disadvantages
- Very poor stats, requiring a lot of ISO chips to cover weaknesses and increase effectiveness.
Quicksilver is a fun hero to play, period. At lower levels, he isn’t particularly strong with his attacks, inflicting mosquito-like hits on his opponents – but he has a lot of attacks, and a lot of them inflict Critical damage. As you get him leveled up and fitted out with ISO chips to build him up (particularly his low, low Attack and Defense numbers), he becomes more powerful, eventually getting to the point where he can inflict serious and sometimes massive damage on single opponents. He is popular in PVP, especially with his Blue Suit alternate uniform.
Because of his speed, he (almost) always starts the round, and he gets two attacks, not just the one. He also gains a Quickness buff every time he uses his Blinding Punches attack. He can stack these Quicknesses up to 5 times, and will use them either in counter-attacking (one of the few Scrappers to get any counter-attack capabilities), or to spiff up his big single attack, the One-Mile Punch. If he gets all five Quickness buffs before launching that attack, he can clobber an opponent. His Quickness also comes in handy with his fourth attack, the area Vortex Lariat. The more Quicknesses he has, the more likely he is to Stun an opponent.
All Scrappers are particularly effective against Infiltrators, but QS has a unique advantage: his second attack in Close Quarters Combat is his other area attack, Tag Team. Both his first and second attacks are Stealthy, which means he does not Enrage bruisers or invite counter-attacks on himself when he uses it. Moreover, Tag Team gives Combo Setup to the bad guys, which means the next unarmed attack will inflict extra damage – his, if he uses the same attack strategy twice in a row.
Quicksilver is popular in especially tough non-PVP battles because his two turns at the beginning of each round can be used for other things besides attacks. For example, when fighting a particularly tough boss, Quicksilver can use one, or even both, of his turns to heal his teammates, use a defensive resource such as Chrono Boost, or anything else the team has available to them.
PVP and Alternate Uniforms: In PVP, Quicksilver often appears in his Blue Suit alt (generalist and scrapper). The big deal here is his Time Displacement attack; he uses his incredible speed to “journey into the future,’ launch a random attack against a single opponent, and return before the opposition can do anything to counter it. The attack materializes a turn or two later, often to serious effect, and cannot be defended against.
If you don’t have him, you should get him as soon as possible. He is worth the time and effort it takes to level and chip him into effectiveness.
Strategy Suggestions
When I’m taking QS into a tough battle, I like to use his first attack to apply Penetrating Strike to him. He already has a high “crit” ratio, but that ensures he hits for Critical damage on every attack for the next three rounds. Other of the Strike supplies are also fun to use. Whether I do that or not, I always start with his Blinding Punches attack, which gives him Quickness, and if he can strike an Infiltrator, he gets Tag Team, also. It’s fun to watch your opponents’ health just melt away as he hits them with attack after attack.
Get four or five Quicknesses stacked on him before launching his One-Mile Punch or Vortex Lariat. The buffs greatly increase the effectiveness of these attacks.
If you use him for PVP, you should certainly get his Blue Suit alt. You should also pair him with a Blaster, who can protect him from the Bruisers who can dismantle Quicksilver with relative ease.