For example, Lier, Disciple of the Drowned gives all your graveyard spells Flashback and Katilda and Lier can grant flashback to spells in your graveyard when you cast Humans
Any wheel effects like Wheel of Fortune or Windfall can discard a ton of Islands, Pirates, and Vehicles from your hand which, in turn, can create a ton of tapped Treasure Tokens
Cards like The Rack, Bandit's Talent, and Shrieking Affliction are essential sources of damage that discard-centric decks need to win with in Constructed
Three sets have been released for Disney Lorcana, with the third set, Into the Inklands, introducing new elements such as Locations to the game
Trophy Mage finds swords of all ilks or maybe something like Crucible of Worlds to start attacking the opponent's mana with Ghost Quarter and Field of Ruin
Maybe with some movement cost reduction though, this could be good