Double snipe - can amount to 2000+ damage, coming from somewhere you can't see
Double rooks - 16 towers total, with which you can hold back anything thrown at you
Double sednas - Two healers, which means no one dies, ever
Double QoT - see above
Double oak - not a big deal
Double erebus - double bite can be annoying but again, not a big deal
Double UB - not too big a deal, but double spit can still be annoying (one after the other, as they dont stack)
Double TB - not a big deal
Funny, u prolly havent meet Apika and belier b4 heart nerf, 2 TB in crucible, jesus, that was hell.
About the rest. It depends. Its a 2x2? I will talk about what I usualy play, 2x2, any double is garbage. On top of this, depends on the map, and they suck even more.
2 Rooks... counter.... 1 Oak or 1 Erebus. Easy counter eh? Not to mention other stuff, I will only talk about the most direct ones.
2 sednas, noone dies, I mean, no one, not they, not you. Counter, teamplay, the game normaly is conquest, its not about killing, its about war rank, its about some particular flags.
2 QoT, well, really?
You can't do much against 2 good (I underline good) Rook players that stack 16 towers If they do it on both lanes or at their interesection, then your creeps wont get out and u cant really attack their base on your own Sure, giants and massive aoe can solve it, but at that time their team already has the advatange (if you survived that long anyway).
2 Rooks is a weak "combo"
cataract, both in the middle u say is strong. My team would control both lanes, 2 flags, we r in the lead to war rank, will destroy the side ways an to their portal. If they separate is a normal game, just like if it was only 1 rook without the advantage of another DG, they can't Teleport to help, or if he do he wont be that helpfull (at saving his bud)
Prision, 2 rooks will lose, low mobility in a open map and war rank 7 lets u get trebs. If u don't know trebs against Rook in Prision, well, you should.
Crucible, 2 low mobility with important flags far, far away = not good. Sure, 1 Rook in crucible is kinda nice, but 2 will lead to a total failure.
I usualy play on those maps, so I wont comment other maps, or 3x3+ games.
Thats my input.
Gl and hf all. doubles arent overpowered, just needs a little counter, even b4 starting the game 