JoJo's Bizarre Adventure: All-Star Battle R/Narciso Anasui/Strategy
Neutral
In neutral, Anasui works best by staying in Stand On as it gives him access to his longest range normals and attacks. He will most likely approach the most during roundstart, as his opponent will not have any attacks to keep him locked out which allows him to keep his effective distance once players are able to act. He will most often use s.5L and s.2L to poke at the opponent as they have incredible range for their speed. His best option when jumping in on an opponent is to use s.jM or j.H depending on what the opponent is doing. j.M is good if the opponent is going to air-to-air or is unable to block the attack, as it will launch the opponent and allow Anasui to confirm into a full combo even if it hits the opponent airborne. j.H allows Anasui to continue on the ground while the opponent stays grounded, allowing Anasui to continue pressure and mix up the opponent after he lands. While in Stand Off, Anasui can set up traps with 214X in order to try to keep the opponent at bay while trying to set up his own gameplan again, which will mostly likely happen after a reset to neutral post-knockdown.
Offense
Anasui truly shines on offense, especially in Stand On. His 5L and 2L both naturally tick throw into his 63214X and allow him to get a good strike/throw mixups that have to be predicted rather than reacted if the opponent wants to avoid it. He can also use his 236X series to either quickly open up the opponent, provide pressure and lock down the opponent, or combo while swapping between Stand Off and On mid combo. He also has access to an air special in j.214X, but it isn't effective for extending combos, but rather is best used as a double overhead as a mixup. While in Stand Off, Anasui must be up close to pressure the opponent. He has access to his 6M while in Stand Off as well, which is an overhead that can frame trap the opponent, which acts as a double-edged sword as the opponent can Stylish Guard in response to the move being used, making it a bit riskier to use. Anasui can also use 214X to make his pressure safe, although it does cost 0.5 HH gauge which could alternatively be used to go into Stand On and try to mix up the opponent more effectively.
Defense
Anasui does not have any defensive options in his kit, forcing him to play defensively by using universal mechanics. When an opponent begins to apply pressure to his block, he has to block it all out or Stylish Dodge or Guard a gap to try to gain an advantage. His HHA and GHA both have limited invulnerability, making them less effective as reversals, especially against projectiles. Anasui can play defensively in neutral with his large pokes in Stand On, but it is only effective when pressure is currently not being applied and the opponent is trying to approach. Anasui has access to fast buttons with his jabs, making them good for attempting to mash out of situations if need be as well.
Assist Usage
Akira Otoishi
Since Anasui's combos are mostly self-sufficient, Akira is an option to have more HH Gauge on hand to perform more Flash Cancels. While not necessarily his best Assist, it's still a pretty safe bet.
Yoshikage Kira
Kira serves to strengthen Anasui's oki. By calling Kira after an OTG hit and attempting to use "How awful!" during the opponent's wakeup, the coin is timed to hit meaty and at a low enough altitude to not only catch a jump-out attempt, but also manage to hit Anasui and significantly reduce his recovery on whiff, allowing conversions into combos. Because attempting to Stylish Guard the coin still leaves the opponent susceptible to Anasui's command grab, this Assist is great against opponents without meterless reversal options.
Enrico Pucci (Whitesnake)
Pucci offers a unique niche that cranks Anasui's already high damage to even higher levels. Anasui can take advantage of this double-hitting OTG to fully charge "And... RELEASE!" and connect an OTG relaunch from almost any hard knockdown (including a clean hit from the H version of "You're in range!" and even "How awful!"!). This increase in conversion and damage potential definitely make this Assist the best for Anasui.