I cant wait to be back next time to buy some video games that Ive been long waiting to play
From that perspective, I think energy is an amazing mechanic which represents a much better potential future for Magic design
Creatures that make mana (mana dorks), artifacts that make mana (mana rocks), Rampant GrowthRampant Growth-type effects, "rituals" like Dark RitualDark Ritual, cards that make Treasure tokens
Vampiric Tutor Probably the best Black tutor in the game is Vampiric Tutor
These sets are either very strong multicolor sets (Invasion/Planeshift, Khans of Tarkir, Return to Ravnica/Gatecrash, Shadowmoor), sets with great removal at common/uncommon (M11, Conspiracy/Conspiracy: Take the Crown) or strong colorless or colored cards that can reward any draft (Mirrodin/Darksteel and Theros)
Finally, they are with defender so they cannot swing, barring a deck packed with things like Rolling Stones