He also gains +1/+1 counters whenever you cast an artifact or Lesson spell

These are the important cards you are looking for: Ways to get big creatures into the graveyard - Entomb, Bone Shards, Bitter Triumph, Liliana of the Veil, Frantic Search, Collective Brutality, Jace Vryns Prodigy, Faithless Looting, Psychic Frog, Malcolm Alluring Scoundrel, Thirst for Discovery Ways to bring them back into play - Reanimate, Exhume, Animate Dead, Persist, Necromancy, Recurring Nightmare, Unburial Rites, Life/Death, Emperor of Bones Tutors and card selection to find your missing pieces - Vampiric Tutor, Mystical Tutor, Demonic Tutor, Wishclav Talisman (this one is quite risky though and is more of a Storm card where you can usually win in the same turn), Brainstorm, Ponder, Preordain, Nights Whisper Discard spells to clear the way - Thoughtseize, Inquisition of Kozilek, Duress And finally, the big creatures to reanimate - Archon of Cruelty, Griselbrand, Atraxa Grand Unifier, Etali Primal Conqueror, Woodfall Primus, Myr Battlesphere, Triplicate Titan, Sundering Titan

The fact that it cycles makes it attractive in spells matters builds, led by four-drop commanders Ashling, Flame Dancer, Urabrask, or Kuja, Genome Sorcerer, and featuring payoffs storm payoffs
You dont really need to surround this with other cats to make it pop off