mtg eldritch moon booster box Pack Featuring the Emerge mechanic and powerful transforming creatures Eldritch Moon - Sleeved Booster

Sephiroth, Fabled SOLDIER (who is my most recent Commander deck project) has extremely powerful abilities, and is now a game-changer in Pioneer Sacrifice decks

Additionally, she lets you pay two mana to give all of your Dragons another one power

Let any human settlement grow too large, or advance too far, and suddenly you have Sin knocking at its doorstep, ready to annihilate everyone, spitting out a corrupted husk afterwards

You might not expect it to be the Dragon-focused colors, but it actually has a lot of great options with them: red and black

The Collectors Set sold out during the event

Another interesting combo would be to have Michelangelo, the Heart partner up with Splinter, the Mentor as co-Commanders