In UMVC3, Spidey's been buffed even more. His Maxium Spider has also changed radically from a simple wall-to-wall attack to an initial blow attack that leads into a cinematic autocombo, improving its usage. This, combined with his Web Swing, air dash and triangle jump can give him extreme match control ability.
In MVC3, his combo potential has been retweaked thanks to the new control setups, and with his Web Glide attack, he can now zone the opponent more so than ever and can even use it to set up combos by pulling himself towards the foes, and at proper angles can even mixup and/or crossup foes at times. His Web Throw is also great for some ranged attacking prowess, though his Web Ball is a generally unneeded move. However, Spidey also packs some great range on several of his normals such as his old crouching HP which makes him lean in rather far, giving great forms of poking and close-combat spacing. Spider-Man's combos are also confusing in terms of proper chaining in past games, as his standing MP was a launcher like some characters', which caused some magic-series confusion.
His crouching MK (now his crouching M in MVC3) is meant to kick up foes for his st.HK to properly launch, though in MVC3 this is no longer the case as both attacks no longer launch. His standing HK (now his standing H in MVC3) has some odd properties in that it only launches on a midair foe, though he can still super jump from it if it hits. This allows X-23 to create even safer mixups from her Mirage Feints (All versions of Mirage Feint can be canceled like this), and leave herself at frame advantage. You can utilize this as an auto-correct: If inputted just before, or just after X-23 crosses up with a Mirage Feint, you will get a Talon Attack in the corresponding direction. Simply input + and then + when crossing up the opponent to perform an instant Talon Attack as she crosses through the opponent.
Her Mirage Feint Cancels ( +, , or then ) makes most of her normals safe on block and allows for fast pokes.Her fully charged Neck Slice is very safe on block as well as having a good reach and priority which means it could beat out other attacks if used properly.X-23 mainly relies on her Mirage Feints for mixups and good damage potential as most of her BnBs usually use the Heavy Mirage Feint to continue a ground combo.X-23 needs a good projectile or beam assist to help her get in on good keep-away characters since she has limited tools to get around projectiles, or zoning based moves without leaving herself vulnerable to counter attack.