Unlike many effects that grant additional combat phases, you don't get an additional main phase with Godo, Bandit Warlord's ability
This strange common card has a very unusual backstory, as it was given as a reward by mentors to select judges who were able to answer a difficult quiz question regarding nuanced rulings
Instead, they might give it away on the last session to anyone whod played in the season or maybe attended more than once, etc
The Soldevi Machinist is a Wizard Artificer , which shows with his art and effect interacting with artifacts
Ive used it on turn one to stop a mana dork, and on turn six to shut down a Voltron commander that was about to end me
These two seem easy to get value from because they replace themselves at zero cost