It works even better in multiplayer formats like Commander, as you could deal lethal damage to one player and make enough tokens to take out the other two on the next turn
Kels Fight Fixer Kel Fight Fixer is a headliner for two of the Minions variants with decent attack for her cost, especially since her Menace ability means your opponent can only block her by committing two blockers
Out of Bounds In my head, Out of Bounds is usually a 1-2 mana Counterspell when you're countering a scary threat because nobody wants to see that Vorinclex, Voice of Hunger actually resolve, so somebody will assist you if they have the mana
Box Breaks What is a box break, exactly
You may spend mana as though it were mana of any color to activate those abilities
Putting an experience counter on Mizzix each time you cast an instant or sorcery, provided you keep casting spells with mana value higher than her total number of counters, lets you reduce the cost more and more