Tokens tend to be strong in midrange mirrors where you can get that bit of extra value from them that helps put you ahead in the value game
The first one that comes to mind is, of course, Cori-Steel Cutter
However, there are a few solid cards included in this deck list, including the highly effective Dual-Ink Giant Cobra character which is currently Amethyst/Steels Dual-Ink card of choice
That flexibility is hard to capture on a single Magic card, though we did try
Its like an extremely powerful Planeswalker ability, except it happens every turn from now on, and cant be attacked or destroyed by most conventional means
The immediate effect Kutzil, Malamet Exemplar brings to your game is that it shuts down your opponents from casting spells during your turn