Lost to Phyrexia is a whopping 9/9 that lets you choose between three abilities when it enters the battlefield
Hellbent was introduced in Dissension and only appeared on cards associated with the Rakdos (Black/Red) guild
Not much is currently known about the upcoming Commander set, but it is sure to bring plenty of interesting cards utilizing the series' long list of monsters and the different Doctors, along with companions and locations

Kyoshi Warriors Invasion Reinforcements White Lotus Reinforcements Earth Kingdom Soldier Compassionate Healer Jet, Freedom Fighter Serpent's Pass The Cave of Two Lovers Tolls of War TierB- Bender's Waterskin Momo, Playful Pet Sokka, Lateral Strategist Gran-Gran Forecasting Fortune Teller Earth Kingdom Protectors Messenger Hawk The Mechanist, Aerial Artisan Agna Qel'a Deadly Precision Cat-Gator TierC+ Badgermole Knowledge Seeker Sold Out Kyoshi Battle Fan Firebending Lesson Airbender's Reversal Glider Kids Guru Pathik Boiling Rock Prison Kyoshi Village Misty Palms Oasis Watery Grasp Canyon Crawler Octopus Form TierC Jeong Jeong's Deserters Fire Nation Warship Merchant of Many Hats First-Time Flyer Pretending Poxbearers Toph, the Blind Bandit Enter the Avatar State Otter-Penguin Katara, Bending Prodigy It'll Quench Ya
I assume wed have to lean on Tajuru Paragon and Base Camp, but if I were to play Abzan, for example, I dont really like any other Wizards available