Cards with this rarity have a pull rate of 100%/0%/0% as the 1st-3rd/4th/5th card
While Multani is a fine commander, I think he will more often end up as part of the 99 of Land decks like Omnath, Locus of Rage, Titania, Protector of Argoth, and The Gitrog Monster: all these commanders bring more explosive power than Multani does but will enjoy this new heavy-hitting landfall-enabler in the 99
This means mechanics like overload, cleave, and mutate may feel similar to kicker, but ae not and have their own rules associated with them
Get that factory going, because the options are a major draw, and they've dwindled
Expect the English gold to follow the same launch-spike-then-fade curve, likely with a wider spread than the SIR because so few copies change hands