Blitz ain't even popular on the pro-scene doe. More likely to see a Leona, Annie, or Alistar (rising star (huehuehueseewhatididthar?).
And jinx is just good in general because she pushes hard, brings an absurd amount of damage to the field, and has good zoning cc. There's really no reason why your team should pick anyone other than her or Sivir.
Edit: XERATH ES NUMERO UNO. PLAYS MID OR SUPPORT AND DOESN'T AFRAID OF ANYTHING.
Why do I feel like Velkoz's abilities is a mashup?
Passive is almost like Twitch's stacks, the knockup is like Chogath's Q, his W and R look like Viktor's...
Vel'Koz's Size (Battlecast Skin) [Edit: Classic skin bit small than Battlecast skin]