It’s kinda hard to test this. From the wording of the skill, you could interpret it either way, that it just buffs you or all allies.
I want to know because I want to see if it’s worth to get the affix “added minion regen” for my belt, or just go with minion health instead. I’m using forge strike. I don’t think it’s worth if my minions are only getting max 90 regen. But if the siglils buff, then I’d be doubling that. Would you guys think it’s worth even then?