Esika, God of the Tree/The Prismatic Bridge: Five-colour supreme
Sefris utilizes looting, cycling, sacrificing, entombing, and milling of creatures to trigger her venture ability on everyone's turn, allowing you generate huge value as you loot dungeons and reanimate haymakers to close out the game
Im sure therell eventually be an interesting colorless commander, but so far not so much
You always take your own card and your own life point, but a cautious opponent can decline theirs, which is worth remembering if you are building around forcing cards into other players hands
Usually, Blue is a powerful support color that gives you a tempo advantage and paves the way for big, impactful creatures to hit the battlefield