pokemon card game dice Pokémon Set - 16mm - Crown Zenith - Black & Yellow Ditto does its best to replicate the Substitute move on the colorful storage box Pokémon TCG – TCEvolutions

There are even more efficient self-mill ways like the famous and popular Aftermath Analyst, Bramble Familiar, and Six

Play the Cabal Ritual from the graveyard (with threshold). BBBBBB floating (Storm 10)

Since your sideboard plan depends entirely on your exact configuration, its best to just play as many games as you can and get a feel for which of the twenty cuttables you like the least in the specific matchup youre trying to board for

There aren't any regular +1/+1 counters in the set though, as Wizards felt this would get confusing

Heralds Horn Herald's Horn is absurd in typal decks, making every creature you cast cost 1 less mana