and how you gonna lvlup warcry, stun and stats to actually use this spells ?
soul ring is not enough (mana for 1 bolt on 30s cd) and you need to buy wards/supportstuff anyway
on paper he looks great as you said
in practice all he can do is stun once for 100-175dmg maybe use lowlvl warcry (MS is still nice tho) and thats all
sven sucks as 5
as 4 mayybe if your team is already wining