Your two favorite champs swap passives
How broken/screwed are they?
How broken/screwed are they?
Braum running like crazy towards low health allies sounds good, makes him more bodyguard like
Oh my , No one will expect those stunning bananas from Soraka :D
and
gg

So Darius moves at mach 4 whenever he gets a kill / assist. And Jinx shoots her targets really hard they start to bleed.
If I were a squishy, I would be afraid of Darius so much right now.

Fuck.
gets 250% bonus damage on his autos ignoring 50% of his target's armor...
and
gets health and mana every time she kills a creep. God that bot lane would be so oppressive.
now regens mana over time the less he has,
can now buy an AP/Mana Item that augments an ability every time he upgrades it and has almost like, 180 AP at max rank at level 18? I think Riot would need to rework Veigar, again. Viktor would just suck unless his upgrades became a part of his base kit.

Well they are kinda the exact same. Quinn now deals aoe bonus damage on every third auto attack (valor attacks them) and it also activates after vault. (My god Quinn would hurt assuming it scales ad) Diana deals bonus damage marked targets (moonlit?) Diana wouldn't be quite as good
So...not so different, except that jungle and top Leona become pretty strong, and Lux gets relegated to support forever instead of just part of the time.
and 
in a nutshell: http://24.media.tumblr.com/eddbb90c7b2fd54f1a6365f2771f38cb/tumblr_mnblkxuLCA1r91cn2o1_500.gif
not to bad, loses his teamfight initiation from his mega form, but gains bonus armor and mr for every enemy champ.
I don't either one would lose much from that trade :p
now gains ad based on his movespeed...?
and
now loses pieces of himself when he hits things that he can then pick up to regen health. Oh and he revives when he dies. FEAR THE PARTY PONY(Arcade Hecarim)!!!

Leo jungle is now a thing, Sejuani becomes a support.
true damage every 3 spell hits
voidlings every 4 spell casts
Depending on how the spell hit works with the DoTs, Malzahar just got a ton of much more reliable damage than the voidlings but may have lost his jungling capabilities.
Meanwhile Vel'Koz is stuck with uncontrollable voidlings every couple of seconds.
runs faster towards low health targets, great.
deals dmage in an AoE around her, ... didn't she just get a rework to remove that?
eve would be pretty bad but lb would be a terror.
and
! Like they didn't have enough sustain already?
Mana sustain traded for... mana sustain
and 
Syndra's own ultimate with 6 orbs reduces it's CD by 12 seconds in late game. Making it's CD 36s with max CDR. URF Mode she would just push R all game.
Karma's Q will really hurt. W snare duration increased? E gets increased cast range? RQ would deal 902.75 base + 1.725AP
udyr and jax, meh. I think udyr is now op and jax is screwed.
Now drains his blood well to heal (which fills with each auto) and
Uses fury to come back to life.
I found my anger in the fire.
Hey, I might actually kill people after I die now!

While Lux would lose out on a significant amount of damage, for a mana hungry champion who still has enough cc to fully utilize Lissandra's passive (singularity applies a .25 second slow upon detonation), a free spell every 18 seconds would be huge for her to stay in lane a lot longer.
Lissandra on the other hand, being a short ranged champion with a low cooldown on her Q and the mobility to close in on enemy champions, would get a lot more damage out of Lux's passive by naturally being close enough to weave auto attacks between spells.

I hope you like turret stun-lock :)
Aatrox now stuns people every fourth auto, wonderful, and Braum now revives..... Better for Aatrox, really bad for Braum.
Not my favorite champs...but just imagine this swap:
-
Mega
and Zombie
... Sounds fun!
and 
the sustain is real