all praetor cards mtg Hand of the Praetors - Single Card At the beginning of each opponents upkeep MTG Praetor's Counsel - Mystery

Your commander counts as one of those 100 cards, and they start the game in the Command Zone rather than in the deck

Hardened Scales), or the servos being artifacts (e.g

There must be four or more card types among cards in your graveyard in order for these abilities to trigger

Squee, Goblin Nabob (1999), Lin Sivvi, Defiant Hero (2000), and Wild Mongrel (2001)

The +1 sacrifice effect can break through in games where the board has stalled, or even set up some graveyard shenanigans as a sacrifice outlet

Whether or not well see this mechanic later on other planes is currently unclear, but there doesnt seem to be any problem with it balance wise