mobilize cards mtg (Card) All cards will be carefully packed for safe transit. What ideas or suggestions are

Casual players love cards like this

The biggest deck I would be worried about when registering U/W Spirits is Mardu Pyromancer, due to the combination of removal spells and Lingering Souls

An Ob Nixilis thats actually a great demon commander

Thorna and Twigtooth is an aggressively costed Arena-only commander, sadly you won't remove many stun counters with its attack trigger, but otherwise, any cool drawback counters you want to get rid of become a huge advantage for you

Artifact Color tag templates(None) Herd Heirloom : Add one mana of any color

With Walking Ballista already a primary inclusion, adding Aerith isnt too far-fetched