When playing Rokara and shipwright kills a minion and dies herself you won’t get the health buff even though you killed the enemy, it seems to trigger only if they are alive after the kill.
This is because Rokara’s ability says “After a friendly minion kills an enemy …”
When an ability says “after”, the unit must survive the action in order for the ability to trigger.
But the minion died, so there was no “after”.
Rokara buffs her minions even if they die when trading