Mega Altaria has a lot of bulk and access to echoed voice so even though this isnt technically a BSS set i stil thought i would post
Altaria @ Altarianite
Ability: Natural Cure
EVs: 4 Def / 252 SpA / 252 Spe
Modest Nature
- Echoed voice
- Fire blast/ Earthquake
- Roost
- Earthquake/ Draco meteor/ Dragon pulse
This is not viable in bss as it will not make the best use with only 3 pokemon
If i did my math right
Echoed Voice Hyper Voice Return
1st Turn Base power 79.8 1st Turn Base Power 179.55 1st Turn Base Power 203.49
2nd Turn Base Power 159.6 2nd Turn Base Power 179.55 2nd Turn Base Power 203.49
3rd Turn Base Power 239.4 3rd Turn Base Power 179.55 3rd Turn Base Power 203.49
4th Turn Base Power 319.2 4th Turn Base Power 179.55 4th Turn Base Power 203.49
5th Turn Base Power 399 5th Turn Base Power 179.55 5th turn Base Power 203.49
So Echoed voice only really becomes viable after the 3rd turn
BUTT it becomes crazy powerful after that reaching places only hyper voice and return could only dream of
On problem echoed voice suffers is that it must be used consecutively to get stronger so in theory you'll have to stop your chain if a steel/poison/fire pokemon come out
BUTT even though stopping at a high chain sucks It does give you a chance to roost and then hit them with a fire blast (eq is for the ever so common heatran)
Even though you should switch moves from echoed voice to fireblast/eq you stil do great damage if your high up in echoed voices
CALCS
252+ SpA Pixilate Mega Altaria 3rd Echoed voice vs. 4 HP / 0 SpD Bisharp: 333-393 (122.4 - 144.4%) -- guaranteed OHKO
252+ SpA Pixilate Mega Altaria 5th Echoed Voice vs. 0 HP / 4 SpD Gengar: 261-307 (100.7 - 118.5%) -- guaranteed OHKO
252+ SpA Pixilate Mega Altaria 5th Echoed Voice vs. 252 HP / 0 SpD Eviolite Chansey: 265-313 (37.6 - 44.4%) -- guaranteed 3HKO
252+ SpA Pixilate Mega Altaria 4th Echoed Voice vs. 0 HP / 0 SpD Mega Charizard X: 379-447 (127.6 - 150.5%) -- guaranteed OHKO
252+ SpA Pixilate Mega Altaria 3rd Echoed Voice vs. 0 HP / 0- SpD Mega Diancie: 255-301 (105.8 - 124.8%) -- guaranteed OHKO
252+ SpA Pixilate Mega Altaria 5th Echoed Voice vs. 0 HP / 0 SpD Mega Charizard Y: 183-216 (61.6 - 72.7%) -- guaranteed 2HKO
252+ SpA Pixilate Mega Altaria 5th Echoed Voice vs. 0 HP / 0 SpD Talonflame: 280-330 (94.2 - 111.1%) -- 68.8% chance to OHKO
252+ SpA Pixilate Mega Altaria 5th Echoed Voice vs. 0 HP / 0 SpD Victini: 207-243 (60.7 - 71.2%) -- guaranteed 2HKO
252+ SpA Pixilate Mega Altaria 5th Echoed Voice vs. 0 HP / 4 SpD Mega Metagross: 190-224 (63.1 - 74.4%) -- guaranteed 2HKO
252+ SpA Pixilate Mega Altaria 5th Echoed Voice vs. 96 HP / 0 SpD Volcarona: 198-234 (59.1 - 69.8%) -- guaranteed 2HKO