during a game i ulted a sion then when his berserker state ran out, he instantly respawned back at base, a few friends and i recreated this bug but it does work though the whole game for a instant Respawn sion! https://www.youtube.com/watch?v=IX3VeT05O0Q
Everyone upvote this. This is just the buff Yorick needs.
This isnt a bug. Both sions passive and yoricks ult reduce the death timer of the subject. When you die your death timer begins, just because you came back as a ghoul and then zombie doesnt mean the timer isnt ticking. Early game sion deaths have the same effect. if zombie sion stays alive longer than the death timer his resurrection is instantaneous. basically its an awesome interaction but not a glitch or bug in any sense.
(Credentials: Sion main.)
