Apart from mutate cards to trigger that ability, I guess you could use Stuffy Doll and Brash Taunter, or fill your deck with cards that grant abilities to your commander like backgrounds and the legendary familiars (Kediss, Falthis, et al)
You could access one of the activations in a monocolor deck, but access to both activations required a two-color deck
A major rotation has officially removed five sets from play: Dominaria United, The Brothers War, Phyrexia: All Will Be One, March of the Machine, and The Aftermath
[L][F][C][C] Ultra Uppercut-GX: 240
For example, a control deck utilising Foretell can cast spells for cheaper as long as the player invests early on
However, the degree of defects could be even more severe, resulting in a nearly complete loss of their visual aesthetics