An example of unhelpful data is Xanders Lounge: This is an extremely good card, but because its all over the place in Commander, rotation is barely affecting the price
Ezzaroot Channeler | Illustration by Kieran Yanner Cost reducers make spells cost less mana to cast
If Secluded Courtyard is somehow on the battlefield without a chosen type, mana from its second mana ability can't be spent on anything
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Value Now if you noticed, assuming 30-32 lands, 1-2 commanders, and 60 other cards, that only leaves 6-9 cards left over for everything else
Another might chip away with just their commander and keep back a murderers row of Royal Assassin lookalikes to discourage retaliation