You don't even need to use materials for this
I learned this the hard way years ago when my first Dragon deck looked powerful on paper, but stalled every game because the commander did not support the tribe properly
Graveyard Gengar In the original Japanese version, you can clearly see crosses in the background, suggesting that Gengar is in a graveyard
Different playstyles, decks, and even opinions can shift where a card falls on anyones list of good cards, so feel free to test any mana ramp card that looks like itll speed up or otherwise improve your deck
Tune your decks Get swaps, adds, and cuts for any Commander or EDH deck
Always buy graded copies from PSA, CGC, or BGS for No Rarity, CoroCoro, and Illustrator-tier cards, since raw sales at these price points carry too much authentication risk.