>>51695242Bisharp is good but calling it "godtier" is a stretch. The problems are that it's slow, it likes using offensive items such as Life Orb, Black Glasses and Choice Band, has no recovery and has middling 65/100/70 bulk with a good but exploitable defensive type. Sure Eviolite might let it barely survive Garchomp's Earthquake (before dying from Rough Skin damage) but aside from that it significantly cuts down its breaking power in comparison to *itself*, let alone its evolution. Hell if there was a exclusive item for Bisharp that worked exactly like Eviolite, with no evolution factored in, it probably wouldn't still use it at least half the time.
In short Eviolite Bisharp is disappointingly weak compared to its usual Life Orb set (missing crucial kills like Sucker Punch against Heatran at +2), not all that bulky, doesn't have the moves to take advantage of the extra bulk and lacks the extra stats of its evolution, it won't be viable in any meta where the evolution is available.