current mtg commander decks Magic: The Gathering Starter Deck – First Flight (White-Blue) | Ready-to-Play Deck for Beginners and Fans | Ages 13+ card%20decks%2C%20each%26nbsp%3Bwith%20a%26nbsp%3Bunique%20two Commander Masters Commander Decks [Set

I know 21 commander damage got decided on due to the original cycle of Elder Dragons having 7 power and you getting hit three times equaled 21 but the book quote is just so fitting for our format

Jeska, Thrice Reborn [Best Damage Multiplier Commander] Jeska, Thrice Reborn pushes games toward fast conclusions by amplifying damage from a single source

Open into Wonder

Contents: six (6) foil commons/uncommons, one (1) foil basic land, one (1) Commander-focused card, one (1) non-foil extended art rare/mythic rare, one (1) foil rare/mythic rare, two (2) non-foil showcase commons/uncommons, one (1) non-foil showcase rare/mythic rare or borderless planeswalker, one (1) non-foil alt-art Godzilla Series Monster card, one (1) foil showcase or borderless planeswalker, one (1) premium token

Then cast them with the mad mana making of #1

With so many sets in Pioneer, the chance that the energy core is just the best way to build decks to such an oppressive extent is much less likely than it was in Standard because ultimately there are still only two sets that contain these energy cards