Virizion doesn't have a good amount of power until boosted.
And yet I proved that Virizion is arguably stronger than your Breloom set
Look at the Stone Edge calcs. OHKO after Multiscale is pretty big, something Virizion would cry for.
Depending on the Dragonite set, Virizion can KO with HP Ice after SR so your point is moot. After a Swords Dance Virizion can also KO after Multi Scale so idk what your point is.
outspeeds Scizor with the opposing priority and KO's
+2 LO Max attack Adamant Mach Punch: 187-222 (54.51 - 64.72%) -- guaranteed 2HKO
I could be be wrong here and fucked up my calcs, but I don't think thats KOing. Virizion, on the other hand, 2KOs at +0, or OHKOs at +2.
Breloom carries and immunity to both Toxic and Toxic Spikes, two common things on the field; in fact, he greatly benefits from status. After that initial status he can also serve as a sleep absorber. Virizion would kill for these things.
I think thats overstating things, if I was really worried about Toxic / Toxic Spikes, I would just run Lum SD (which is not uncommon) and also protects against Burn. You on the other hand, don't have a Toxic Orb (unless you drop LO) so its trickier for you to activate your ability, and until you trigger it, you are vulnerable to sleep, burn, and paralysis just like Virizion is (unless it has Lum).
What Virizion has is just better speed, lack of priority, and three moves (one being grass-type though).
You forgot the fact that Virizion hits a lot harder, has better bulk, and better coverage than Breloom.
Sure, Priority is cool, especially Priority that gets boosted via STAB and SD. However, Mach Punch is just weak, ffs, you need a SD boost to have a shot at OHKOing that Scarf Terrakion that is comming into revenge you. Basically, this Breloom appears to be slightly better against pokemon that outspeed and revenge Virizion (like Scarf Haxorus and Scarf Terrakion) but in the process, loses to a fuckload of things that sit between 71-110 (and highier) base speed while Virizion only really loses out to stuff that sits around 108+ speed, a much smaller group. It also (like I said) hits harder with its STABs than Breloom does and I just think that set is too niche for Breloom to run.
If and when Technician is released, then I won't have a problem accepting this set, however as it stands, it just seems to be outclassed by Virizion
QC Rejected 1/3