That on its own is nasty, but Umbris also gets +1/+1 for each card your opponents own in exile
Legendary Evolution: Charizard is the ultimate evolution of Charmander and Charmeleon, a symbol of power and evolution in the Pokmon world
D-Tier Not Even Worth Discussing Cards: Arcum's Astrolabe, Chrome Mox, Dark Depths, Dig Through Time, Eye of Ugin, Field of the Dead, Gitaxian Probe, Hogaak, Arisen Necropolis, Mox Opal, Mystic Sanctuary, Oko, Thief of Crowns, Once Upon a Time, Seething Song, Skullclamp, Summer Bloom, Rite of Flame, Krark-Clan Ironworks, Golgari Grave-Troll, Tibalt's Trickery, Treasure Cruise, and Uro, Titan of Nature's Wrath
Killing a scary creature is great and all, but handing your opponent a very relevant body to do it doesnt seem like a great plan
Cleffa's attack, 'Eeeeeeek' (correct number of e's and everything) , lets you shuffle your hand into your deck and then draw 7 new cards