One of Balors modes can deal damage equal to the number of cards in a players hand, as does the foe part of Khorvath's Fury
25 Amazing Acrobatics 26 Beetle, Legacy Criminal 27 Chameleon, Master of Disguise 28 The Clone Saga 29 Doc Ock, Sinister Scientist 30 Doc Ocks Henchmen 31 Flying Octobot 32 Hide on the Ceiling 33 Hydro-Man, Fluid Felon 34 Impostor Syndrome 35 Lady Octopus, Inspired Inventor 36 Madame Web, Clairvoyant 37 Mysterio, Master of Illusion 38 Mysterios Phantasm 39a Norman Osborn 39b Green Goblin 40 Oscorp Research Team 41 Robotics Mastery 42 School Daze 43 Secret Identity 44 Spider-Byte, Web Warden 45 Spider-Man No More 46 Spider-Sense 47 Unstable Experiment 48 Whoosh
Unexpected Windfall earns its place by drawing the player two cards and generating two treasure tokens (which tap and sacrifice themselves to generate one mana of any color each)
And Psychotrope Thallid is just plain better than Soothsayer in a Saproling deck
The Join Up cycle is great
From there, Indoraptor has Enrage, which forces an opponent at random to either take damage equal to Indoraptors power or sacrifice a non-token Creature