My favorite combo on command minion builds is Snipers+Raging Spirits+Any fire spell, and try to path towards the command minion cluster and notable North North West of your leftmost node.
Idea is to ignite the enemy immediately through SRS and Fire Spells.
Snipers: Multishot and any “more” or “gain” damage support on snipers as it is good for auto attacks in mobbing and very strong on command for bossing, as it has a shotgun effect.
FireSpell: Volcano at the start, Ember Fusillade later, Flame wall all the time if you can manage.
More details: spam Volcano, do not channel as you can only summon 2 Raging Spirits per cast. but for damage, stage two channel is actually strong and kinda worth it if you don’t mind the extra mental load. Switch to Ember Fusillade when you can. It has the lowest cast speed of them all, and combined with multishot/gambleshot, you can just channel until Projectile count cap to get a decent amount of RS. If you still have some mental capacity after all of this, Flame wall is omega busted for everything you have right now as it is a fire spell and you have two projectile skills at all times. Support with Flammability stuff.
SRS: just use any of the attack/melee/minion/fire damage supports. There’s many.