They should be able to run other events using the new Hub soon, and will need to switch over to be eligible for the Reign of Jafar pre-release
Celestial Gatekeeper, Crookclaw Elder and Aven Brigadier show how WotC used to support typal strategies
When it becomes monstrous, you goad a bunch of creatures all at once, scaling with how much mana you sink into it
On top of that, he bounces creatures, manipulates your opponents draws, and threatens a game-ending ultimate that exiles their entire library
Level Up Discussed at length in the Kargan Dragonlord section the only reason level up is better than kicker or evoke is that typically has a wider range allowing you to get going with just one or two mana and carry on being worthy investments all the way up to around ten mana
Ironically, Erebos is another card that has Yawgmoth's Bargain vibes, this time letting you draw cards for life, which is an extremely common Black proposition