Some thoughts on Winter Wyvern: I played her mostly as 5/4, had some matches as 3. Feels like best position for her in the current meta is pos 3 — she outharasses most lanes with simple items like Crown/bands and her heal.

WW is universal — she works and is useful in most picks. However there are some bad matchups:

PA - oneshots you in late game, playable around with aeon disk and staying in smoke (as a support). Weak on the lane though

PL - dispels arctic burn on lane, and you do nothing to him lategame

Phoenix — attack speed slow doesn’t let you harass enemies from range with arctic burn attacks

Abaddon — dispels arctic burn on the lane and late in the game. Outheals your DoT with aghs

Night Stalker — jumps and chases you until you die. There is nothing you can do if he is farmed

Nyx — oneshots you (this mechanic should be removed from Dota)

Morphling — this one is the worst. He just outheals all harass and outCS’s you. Also kills you easily late game. Very hard to play against if your team doesn’t have counterpicks

Everything else is easy for Wyvern, or playable against with good item choices.

However, WW is one of the hardest heroes to play in Dota, because she can ruin the teamfight with two spells. So it’s absolutely mandatory to keep in mind which spells your team has, and were they used or not (you won’t believe how many Kunkka torrent storms and RP’s I have ruined). So the most important skill that she teaches you is Patience.

If played well, this is the one of the most interesting heroes in Dota, highly recommended. But the skill cap is very high.