chandra cards mtg Signature Spellbook: sacrifice this token Chandra, Torch of Defiance (SDCC)

This is a small combo, but it prevents you from ever discarding Pua, so you'll always have him in your deck, no matter how many times he is banished

These are particularly effective when opponents have few creatures, such as against Voltron strategies

So instead of adding bad ramp they just added more lands instead to make sure you keep hitting land drops, which isn't ideal but better than the alternative

Undead Unleashed functions in less predictable ways

Since green is the color most known for mana ramp in Magic, it is popular for both monocolor and multicolor decks in Commander because faster access to your mana usually increases your odds of closing out and winning a game quickly