Modern is filled with cards that have high opportunity cost because the format is large enough to be able to satisfy their high deckbuilding constraints and unlock their full potential
Iron Crown ex is deceptively good
There are many details which could be picked out, but here's a few specific observations: For a long portion of Magic's history, two or three sets would be grouped into a "block" sharing one setting
Coercive Recruiter Im imagining some awesome Grixis aristocrats Commander deck using Pitiless Plunderer, Captivating Crew, and Coercive Recruiter
A 7/7 for 5 mana is pretty powerful, which is why it has the effect that it does
After all, the turn you cast Betor, Kin to All, its very likely that youll draw an extra card