you only pay for real, printed cards
The crucial thing to remember about the spell-cheating element of Buster Swords trigger is the mana value limit is dictated by combat damage dealt to a player, not their creatures
If you have a friend (or an internet stranger who's generous enough) who attended multiple events, they might let you have their extra codes
Im not ashamed to play one, but even a slower format like this still rewards efficiency
Farewell is possibly the best boardwipe in the whole of commander, with its versatility and ability to exile (not destroy, importantly) whatever you need at that moment while protecting the other types you want to keep around
(2025-06-06) If the creature copied by the token had any "when [this permanent] enters" abilities, the token also has those abilities, and they'll trigger when it's created