Once we establish the art style, we seek out artists who have experience in that style or are excited to experiment with it
The only problem with Embercleave is that it's an equipment that requires very specific decks and conditions to really make it effective, but in the decks that fulfill those criteria, you're very likely going to get snookered
Anyway, one of my most beloved EDH decks of all time is The Gitrog Monster
Look for high-rarity cards that synergize with your pieces rather than standalone cards that are an obvious threat
Loxi: If all you care about is copying triggered abilities, I'd probably still often favor Strionic Resonator, but if activated effects are on the menu this is really good
This also helps modify creatures, which can be useful for cards like Together ForeverTogether Forever