And, they may be worth a lot of money
Combustion Technique Combustion Technique scales up with the lessons you put in the graveyard
This old chestnut of a deck, which usually runs all the lifegain and drain combos, from Sanguine Bond + Exquisite Blood to Felidar Sovereign nonsense, has a new buddy in Will, Scion of Peace
This is unusual, as normally tap abilities can't be activated from a player's hand
While its since fallen out of favor in Modern its still very popular in EDH decks that have mana rocks and high artifact counts
Sarkhan did get to rely on Rhystic Study, but the more I played with Study, the more I started to feel it was such a feast or famine card in lower power typal decks that it over inflated the decks win rate, and was a bit of a crutch