Every time an opponent draws beyond their normal draw step, you deal damage to any target and grow an Orc Army
Even then, I think it's OK to sometimes play a higher-powered list so long as it's not a constant problem
The Rest There are some ramp cards that dont quite fit the other categories, but deserve a mention nonetheless
Alaundo the Seer Bound // Determined Bring to Light Croaking Counterpart Doc Aurlock, Grizzled Genius Evidence Examiner Flotsam // Jetsam Grolnok, the Omnivore Ignis Scientia Imoti, Celebrant of Bounty Incubation // Incongruity Incubation // Incongruity Invasion of Pyrulea Kasmina, Enigma Sage Kellan, Inquisitive Prodigy Kellan, Inquisitive Prodigy Lilysplash Mentor Lunar Hatchling Make Your Own Luck Malanthrope Oversimplify Quandrix, the Proof Rootcoil Creeper Sail into the West Shardless Agent Tamiyo, Compleated Sage Uro, Titan of Nature's Wrath Winterthorn Blessing Wistfulness Worlds Within Worlds
His tap-to-destroy mechanic adds control elements while scaling with each creature fed to him