9 Energy Energy is a unique counter that isn't given to creatures, but to you instead
Between generally massive board states, counterspells, and board wipes, its not uncommon for games to last for hours
Bonecrusher Giant A powerhouse in 60-card formats, the two spells for one card with the Stomp spell on Bonecrusher Giant is huge
are two of the most impactful cards from Reign of Jafar, bringing Amethyst/Emerald decks back into tournament top cuts
Whether you think Black Lotus or Time Walk should really be considered the best card in MTG history, there is a strong argument there as well
The mechanic is even more focused in THB, since it works the same on all its creatures (it could be a keyword here, whereas it had to be an ability word in THS), but lacking Bestow, its harder to trigger