Block Icon 4 Type The Seven Warlords of the Sea/Kuja Pirates Effect [Counter] If you have 2 or less Life cards, up to 1 of your opponent's active Characters cannot attack during this turn
While it obviously isnt quite as good as the aforementioned cards, Festerleech has a lot going for it, able to fill your graveyard and/or swing for three as early as turn two
Cards like artifacts that add any mana act as pseudo copies of Mox Ruby (or any of the old Moxen, really) and big creatures can now get played on turn 1
They often form the backbone of Limited decks, provide basic removal and combat tricks, and occasionally become format staples that punch way above their perceived power level
I strongly valued being able to play with 4 Sad Beasts in my deck to realize I really only needed 2 as well being able to play with top-ranked decks that I otherwise would not be able to try since I dont have the $450 worth of cards for them
1v1 Commander is also a competitive format and it's ok to totally screw your opponent and you might have room in your 99 occasionally