I also had two Hunt for Specimens which could reliably pick up my Environmental Sciences if needed
S6H has four Alt Art V cards at $50+ each in the English market (Galarian Moltres, Slowking, Articuno, Zapdos), while S6Ks value is concentrated in fewer, lower-priced alt arts
But the baseline for Flame of Anor is two cards drawn by whoever you like that can also serve two other useful spot removal purposes
Some are horrible, some are cute, some are powerful, and some are almost game-breaking, but these are the bread and butter that make your deck a deck
Add in that Otrimi, the Ever-Playful might be the least exciting and playable of the face commanders, and Sultai Mutate comes in at the very bottom of our list
The best removal option for him will be hard removal like Dragon Fire and the new Steel song, And Then Along Came Zeus