Ability - Sap Sipper
+20 Sec Def
+40 Spec Attack
Atk 85 --> 105 (+20)
Def 85 --> 150 (+65)
SDef 65 --> 80 (+15)
Now it's got enough bulk to not get 2HKO'd by Mega Pinsir's Return even after Stealth Rock and 1 layer of Spikes.
Ability: Unawarily Sapsipping
Sapsipper is great and makes him a weaknessless poke but unaware js really the only reason Quagsire shines competitively. Plus as a mega ability he can't switch into a grass move before Mega-ing, which reduces his viability since you'd want to keep unaware as long as possible. Just make a unique sap sipper item that only water/ground types can hold and suddenly both Whiscash and Quagsire are great, Seismitoad is good, and Gastrodon gets banned to Ubers or something.
what's with retards trying to get rid of 4x weaknesses like they don't exist on purpose? Even if that was a feasible ability (it's not), you literally just made this piece of shit impossible to kill.
No, Magnezone shouldn't get levitate and no, Scizor shouldn't get a special snowflake item that makes it immune to fire. The fact that people don't understand weaknesses are supposed to be weaknesses is really only permissible if we're talking about literal children who don't know better.
That said, OP is retarded