mtg make extra upkeeps card Obeka, Spitter of Seconds Magic Custom Commander Deck take an extra upkeep (Modern

Double that if Doubling Season is involved

Archelos was designed as the first Turtle commander

Then, for its final two chapters, the next creature spell you play gains haste which can provide some stunning surprise attacks and delivers yet more ammo for mono-red strategies (or Jeskai Prowess strategies) to run roughshod over Standard for the foreseeable future

Your opponents are going to suffer for tapping those Sol Rings, which is bad news when a chunky Menace creature is on the scene

Blossoming Tortoise and Blanchwood Prowler are thematic, powerful self-mill cards that fill your graveyard so you can consistently trigger Undergrowth Recon on your upkeep