[2021] Totem Shaman Build...Now more Shamantastic!

OK! I totally didn’t understand the question on discord but the answer still stands. Abilities that minions use aren’t inherently minion abilities. When an ability tooltip shows up in a minion skill tree, it generates the tooltip as if you were casting the ability. So Blizzard isn’t a minion skill, it’s just a skill that only your minions cast. So, your minion is using its relevant stats to cast. When you summon a minion, it gains spell damage equal to your minion spell damage. Then when it casts Blizzard, it uses its spell damage, which is your minion spell damage.

This is the core of why minion skill tooltip dps is so crazy hard to calculate even remotely usefully.