double token cards mtg Thopter // Dragon (0020) Double-Sided [Commander Masters Tokens] Token Creature — Spirit MTG Token Doublers That Will

Legendary Land Color tag templates(None) Reliquary Tower You have no maximum hand size

This means they can't be attacked by your rivals, essentially allowing you to earn points before retreating to safety

With very expensive cards it is good to be able to put them to other uses in the early game which is actually quite doable with Swallower despite having no built in ways of doing this

For a similar reason, I included Rogue's Passage which is also good once you have a big attacker like Blightsteel Colossus that you want to sneak through

BPhillipYork: Non-conditional land tutors are rare enough this is kind of nice to have if you want to run Eldrazi - Tron in Commander

The one mana is a small price to pay