mtg zedruu commander deck the Greathearted Guide where X is the number of permanents you own that your opponents control. An alter I did for

, , Sacrifice this artifact: You gain 3 life

In that case, the commander remains in exile and will be put onto the battlefield when Karn's ability finishes resolving

This hopefully smooths out the Limited environment, and it has two forms: Basic landcycling on a cycle of common creatures, one for each color (Cloudbound Moogle, Ice Flan, Malboro, Hill Gigas, Balamb T-Rexaur), and they each grab their corresponding basic

If your deck has weaker creatures, you can easily put quest counters on Overseer Of Vault 76 to later pump up your creatures with +1/+1 counters and give them vigilance so they can block after combat

Turns out five artifacts are exactly what you need for Time Sieve, which produces infinite turns in conjunction with a blink effect