Using -1/-1 technology, we could make something that was used once yet had a lasting effect
Creatures (34) 2 Seekers' Squire 4 Fanatical Firebrand 4 Goblin Instigator 4 Dark-Dweller Oracle 4 Midnight Reaper 4 Plaguecrafter 4 Rix Maadi Reveler 4 Judith, the Scourge Diva 4 Gutterbones Lands (22) Spells (4) After a dive into the format, it was quickly clear the best thing you can do along the same lines as Judith, the Scourge Diva is Midnight Reaper
10.-The only card not from the main series 11
It also, perhaps unsurprisingly given the title, promises a ton of new Dragon support
You would need a way to use the cards you are discarding
For example, split cards tend to have high mana values because both of their sides count toward their mana value, so we've got a bunch of Rooms and Aftermath cards where we can often play one side for cheap if we need to but have massive mana values, as far as our janky burn spells are concerned