Greninja, obviously.
That being said, I'm wondering what new changes we'll get when the Lucas patch hits. I was thinking:
- Luigi: Some nerf... maybe increased knockback on fair or increased knockback scaling on dthrow (last patch all he got was a 1% damage reduction on sourspot fireballs, which was a bit of a joke)
- DK: Dongbending effectiveness reduced (no super armor, lowered wind strength or both)
- Sheik: Slightly increased landing lag on some aerials & up B
- Mewtwo: Grab, jab hitboxes enlarged. Added weak dmash hitbox that can hit slightly behind Mewtwo
- Ness: Upgraded travel distance, speed and/or recovery on Lucas-style PK fire. Rolling PK Thunder given infinite priority (because come on, it's crap right now)
- Pac-Man: Increased shield damage on some fruit (melons? cherries?), regular hydrant shoots three blasts of water before disappearing, crazy fruits key lingers in place a lot longer, crazy fruits bell stuns (maybe less than the regular one), dair hits pull opponents towards the next hit more (right now they nearly leave opponents in place), reduced grab cooldown OR increased grab range
- All over the board: Jab combos less likely to whiff (looking at you, Samus)
Rolling PK Thunder is still pretty good right now, and Samus's Jab "combo" whiffing is intentional. Mewtwo's dsmash not having a hitbox behind him is intentional. EVERY dsmash that hits on one side is always safe on block in this game.
If I were to make some conservative changes:
Sheik: Nerf needles or fair slightly
Robin: Increase run speed
Link: Bring back Jab cancel or at least make it faster than it is now (it's too nerfed)
DK: Reduce windbox on Kong Cyclone slightly
Mewtwo: Fix hitboxes on smashes
Zelda: Increase run speed and make Din's Fire not put her into free fall when used in the air.