Generous Plunderer I like the mini-game that Generous Plunderer presents, allowing you to ramp at the expense of gifting treasure to other players
Double the rare slots, double the box toppers, double the first-picks in Draft. Later, on Weekly MTG, they confirmed that the last part does in fact mean that players will draft two cards for their first pick for all three packs in a draft
Bonus: Set Editors These listed sites are fine if you want to make one or two custom cards, but what if you wanted to go all the way and make a full set
Pay special attention to the wording of rules for whether things like heal/banish/return to hand/keywords (like Reckless) apply to Location
Just look at Spirit Water RevivalSpirit Water Revival: It's a great tool, especially during longer and grindier matches, to refill your hand using the resources you've accumulated during the game
Cards like Myrkul, Lord of Bones, Teysa Karlov, and The Meathook Massacre have amazing interactions with The Sibsig Ceremony