Delightful Discovery helps build tension with your opponents
3 Bleeding Effect Blightwing Bandit Bloodthirsty Conqueror Bone Picker Bonepicker Skirge Bow of Nylea Cairn Wanderer Covetous Geist Crystalline Giant Cultist of the Absolute Damocles Base, Sword of Kang Deadly Recluse Death-Hood Cobra Deathgaze Cockatrice Dragonlord Silumgar Dreadwing Scavenger Eater of Virtue Embodiment of Agonies Entropic Battlecruiser Eye of Nidhogg Feral Deathgorger Feral Deathgorger Fetid Imp Fleetfeather Cockatrice Fumulus, the Infestation Green Goblin, Revenant Grendel, Spawn of Knull Gutmorn, Pactbound Servant Henrika, Infernal Seer Hornet Nest Hornet Queen Ice-Fang Coatl Indominus Rex, Alpha Kathril, Aspect Warper Kaya, Geist Hunter Kessig Recluse Kura, the Boundless Sky Majestic Myriarch Malakir Familiar Midnight Assassin Moonstone Harbinger Multiclass Baldric Needlethorn Drake Neriv, Crackling Vanguard Nighthawk Scavenger Nightveil Predator Nu and Sumi, Career Criminals Odric, Blood-Cursed Odric, Lunarch Marshal Old-Fashioned Vampire Orzhov Enforcer Pestilent Kathari Poison-Tip Archer Qarsi Revenant Rayami, First of the Fallen
So, while you struggle to simply cast spells, that one opponent will quickly pull away with the game if left unchecked
Black is also pretty good as well, with the drawback of usually having to pay life
