Nantuko Husk is a Zombie, of course, but also a great way to trigger Relentless Dead, Shambling Goblin, and Liliana, Heretical Healer
But also with the old classics, like a rejigged cartoony Slowpoke from Miki Tanaka, the classic Viridian Forest "fat" Pikachu a from Mitsuhiro Artia, or the reworked, mournful Cubone of his looking up longingly at the night sky
You cant just throw a Kozilek, the Great Distortion in your deck, and the same would be true even if you were talking about a four-drop with an equivalent colorless commitment
In the event that you have two Level 10 Monsters on the field and a game state where there are no more possible interruptions against you, players can just go for the Superdreadnought OTK strategy simply by summoning one Rank 10 Xyz Monster
I have a lot more respect for Hearthstones core economy