Cactu's Elena guide

Everything in the game that Elena has an option to punish with SA2
(not all of this is humanly possible or worth trying to do, but where else is the data  boiz?)
Akuma:
-cl.hp also possible on hit if reversal timing and not totally max range
-cr mk at point blank only
-any blocked dp

Urien:
-cr.hk at any range, only needs reversal timing total max range
-Any tackle strength on block, (cr.mp xx SA2 is tight on EX tackle)
-Any knee drop on block

Necro:
-any lightning, dependant on range doesnt need reversal
-Command grab on block

Ibuki:
-f.hk reversal only, can't be max range, have to be close
-f.mk any range, doesn't need reversal, is possible on hit if point blank
-cl.hk = your choice punish
-cr.hp is possible but the move is SJ cancellable so DAME DAME
-any Raida, cr.mk xx SA2 timing can be tight, raw SA2 is easy
-lk tsumuji, reversal SA2 only
-mk tsumuji only possible point blank reversal
-hk tsumuji, reversal any range on 3rd hit, can SA2 between 2nd and 3rd hit, if you're crouching a 3rd standing hit will whiff
-b.mk whiffs on Elena crouching
Sean:
-cl.hp
-far.hp only on reversal, and only close, not max range
-cr.hp, reversal on block at any range, none reversal from medium/close range, also possible on hit if close range
-st.mk reversal only really close
-cr.mk reversal only really close
-cr.hk any range, doesnt need reversal even max range
-f.hp reversal possible on standing hit, not on crouch, doesn't need to be reversaled on block, doesn't work at max range
-any ryuubi kyaku
-any blocked dp
-any blocked tatsu
-any tackle

Alex:
-cr.hp ,have to non reversal SA2 to get him grounded, anything else resets Alex
-st.hk/THEBOOT possible at all ranges apart from total max range, also whiffs on Elena crouching
-cr.hk possible at all ranges doesnt even need reversal
-b.hp reversal only at total max range, possible non reversal any other distance, whiffs on Elena crouching
-ex flash chop, the 2nd hit will whiff on Elena crouching
-any stomp reversal only at v close range
-hk+mk slash elbow, raw SA2 really easy, mpxxSA2 is a bit tight, ex and lk elbow are not possible
Yun:
-st.hp (close) 2nd hit whiffs on Elena crouching so is possible to SA2, doesnt need reversal
-far mp (aka 1,2,3,) doesnt need reversal timing, can use lpxxSA2
-st.mk (close, aka the launcher) can reversal it point blank but SA2 doesnt fully connect a lot of the time
-st.hk reversal timing only, close range only
-cr.hk reversal timing only, close range only
-any Zesshou Hohou(dash punch)  including GeneiJin version

Remy:
-cr.hp whiffs on Elena crouching. even point blank, choice punish if aware just look for the confirm before committing
-far hk is reversal only, only at close range so it doesnt push you out, whiffs on Elena crouching
-cr.mk, total max distance doesnt work, any other spacing is fine, if in range for lp, can lp xx SA2
-cr.hk, can super inbetween hits, srk will trade at a decent distance between hits, if close you can mkxxSA2 after full block
-f.mk, only needs reversal at max range, possible on hit at any range but max as well
-any CBK apart from ex, if it doesnt push you max range, can dash under as well if you read it

Q:
-mp whiffs against Elena crouching and 50% of the time on standing, reversal is possible close range
-hp, any range, doesnt need reversal, if in your mp range, mpxxSA2,
-cr.mp, reversal only point blank, whiffs on Elena crouching
-cr.hp, reversal and next frame only at point blank
-hk, reversal only total point blank
-cr.mk reversal only total point blank
-cr.hk ez mode, if mk is range mk xx sa2
-any blocked dash punch
-any high speed barrage, mpxxSA2 is possible but you're often out of range
Chun li:
-st.mk (close) is reversal timing only point blank
-close.hk doesnt need reversal, but it's SJ cancellable so ¯\_(ツ)_/¯
-cr.mk reversal only, point blank only
-cr.hk possible at close to mid ranges, point blank is possible for mpxxSA2 but lp is easier
-b.mp reversal at close distance

Makoto:
-st.hp, possible but often is hayate cancelled to make safer which makes it not possible
-cr.hp reversal only, point blank only
-st.mk whiffs on Elena crouching
-st.hk ez to reversal, any range
-f.mk, nae problem, whiffs on crouch as well
-f.hk your choice punish material
-cr.lk, possible any range, on hit, on block
-any non ex Hayate
-any non ex Chop

12:
-cr.hp
-st.mk, but it's SJ cancellable
-hk, close range only
-crhk any range
-b.mk reversal possible but is often cancelled
-mk.A.X.E. possible on reversal but really hard to get right
-any divebomb
Yang:
-st.hp close, 2nd hit whiffs on cr, only way to counter it
-st.mp far, possible at max with reversal
-st.hp far, whiffs on cr, only way to counter it, not happening
-st.mk close, reversal point blank only
-st.hk, reversal point blank only
-cr.hk, reversal any range, if point blank can mp xx SA2
-any 2nd hit of mantis slash, any gaps between ex, first hit of mp&hp also

Ryu:
-cl.hp only reversal, only point blank
-far.hp, standing block any range, whiffs on Elena crouching, choice punish material
-cr.hp, any range, punishing with mp can be tight
-st.hk whiffs on Elena crouching, basically your choice punish
-cr.mk works at any range, reversal at max
-cr.hk any range, if you're in mp range = your choice punish
-any non ex hado at point blank
-any donkey kick

Oro:
-st.mp (launcher) reversal only, close range only
-cr.mp point blank only
-st.hk whiffs on Elena crouching, can mp xx sa2
-cr.hk point blank only
-f.mp, reversal at max range, can also sa2 on hit, doesnt need reversal at most ranges, hard to do
-command grab = your choice punish
-any dp on block
Dudley:
-cr.mk
-f.hp reversal only, point blank only
-any ducking straight/upper
-any dp on block
-can SA2 ducking itself as well

Elena
-cr.mp any range
-cr.hp reversalable
-cr.hk any range
-f.mk any range
-df.hk any range
-any RH, reversal needed at max range
-any lynx tail = your choice punish
-any SS but lk

Hugo:
-st.mp, not possible max/mid, not hard to do close range
-cr.hp = choice punish obviously
-st.hk any range ez mode
-cr.mk reversal v point blank only
-cr.hk
-f.hp any range
-any lariat
Ken:
-cr.hp, point blank only, possible to reversal on hit
-st.mk any range
-st.hk reversal close range only
-cr.mk reversal point blank only, possible on hit
-cr.hk
-f.mk reversal max range
-any point blank hado
-any tatsu
-any dp on block
This does not mean try and SA2 everything in this list in a match, some things are like Ken trying to SA3 a blocked cr.mk you have to be looking for it so hard you have to shut down the rest of your game and focus on it (even Kuroda agrees!)
what it does mean though is that because Elena is so janky and under-used, the likelyhood that a Urien will sweep you and expect to get away with it is 100% and you can SA2 that move pretty easy from block at any range you block it from
Necro and Dudley for example are generally writeoffs because you should be focusing on not letting them get you in the corner, let alone that you have 0 options against them outside of parry
"But Cactu I don't play SA2 Elena!!" I hear you say, to which I say maybe do the same tests but with SA1 and then teach me how to escape Oro unblockables with SA1 because I don't know how to do that yet (it's a thing)
also if you find any good videos of Elena play, add and watch this playlist to make you stop doing Rhino Horns full-screen
and don't watch Atsugari because that is exactly what he does
 https://www.youtube.com/playlist?list=PLEHJoWymXTCQQ2KI6TRQLXHZBCYsoWofw