If I use Zurgo, Bellstriker as my commander, will the multicast mana cost penalty apply to his dash cost as well?
Yes, but only if you’re Dashing in Zurgo from your command zone. Dash is an alternate mana cost, so Dashing from the command zone is subject to the tax and increases it for the next time you cast Zurgo from there.
Commander tax just means that your commander costs 2 more to cast from your command zone for each previous time you’ve cast it from your command zone. It doesn’t increase the cost to cast your commander from another zone, like your hand or the graveyard.
Remember that Zurgo goes back to your hand if he survives being Dashed, and commander tax won’t apply to casting him from your hand.
Aw! Thanks, Funsize! You sure? I’m not, particularly, confident in it, or any of my recent works. My site hasn’t been getting very many hits, as of late, and as an affect, I haven’t been getting very many commissions to do pieces.