Originally Posted by Padsoldier
Is Death Gate visible to enemies? (If not, is it visible when getting summoned?)
I don't really get his synergy. If he uses Deathgate+Teleport to damage an enemy hero, then Sphere won't stun for a long time, because the enemy is almost within melee range so it does not hit enough units. For Manslayer he does not have enough Agi+gain to get enough attack speed and have it proc often. (Maybe on his Teleport he could also get some AS, or an ensured proc.)
Anti-Magic Shell (typo in name?) is very powerful, maybe even stronger than Doom (lower CD, does not silence but punishes casting spells hard).
The Death Gate is visible, yes.
His synergy is more of a spell combo, like Mirana.
You fire the sphere from further away at the enemy, hitting as many creeps as possible.
While it's in the air you can jump next to your enemy with Death Gate, dealing some damage and start bashing him.
With Anti-Magic Shell (fixing the typo) you can prevent him from casting spells or punish him for doing so. It's his choice what he wants to do, that's why I don't think it's stronger than Doom, what just does not let you cast anything.
The Manslayer procs help you keeping the target in place and maybe also strenghtens your Sphere before it hits.
The +AS is actually a nice idea, but the spell could get too strong and too similar with Mortred's Phantom Strike.