Which isnt the worst because Accumulate Wisdom is Kind of an Ancestral Recall The catch, of course, is that you have to have a critical mass of Lesson cards in your deck (at least four)
You can make certain game actions on your opponents turns, which is unheard of in Pokmon
Even then, the TCG card isn't even actually worth anything until it's sent off to a grading service such as PSA, Beckett, or CGC

Release date: 2007-07-30 Ancestor's Chosen Angel of Mercy Angelic Blessing Angelic Chorus Angelic Wall Aura of Silence Aven Cloudchaser Ballista Squad Bandage Beacon of Immortality Benalish Knight Cho-Manno, Revolutionary Condemn Demystify Field Marshal Ghost Warden Glorious Anthem Hail of Arrows Heart of Light High Ground Holy Day Holy Strength Honor Guard Icatian Priest Kjeldoran Royal Guard Loxodon Mystic Loyal Sentry Luminesce Mobilization Nomad Mythmaker Pacifism Paladin en-Vec Pariah Reviving Dose Reya Dawnbringer Righteousness Rule of Law Samite Healer Serra Angel Serra's Embrace Skyhunter Patrol Skyhunter Prowler Skyhunter Skirmisher Soul Warden Spirit Link Spirit Weaver Starlight Invoker Steadfast Guard Story Circle Suntail Hawk Tempest of Light Treasure Hunter True Believer Tundra Wolves Venerable Monk Voice of All Wall of Swords Warrior's Honor Wild Griffin Windborn Muse Wrath of God Youthful Knight Academy Researchers Air Elemental Ambassador Laquatus Arcanis the Omnipotent Aura Graft Aven Fisher Aven Windreader Boomerang Cancel Cephalid Constable

Meanwhile, the chaos helps reuse those that dont get called up by your Commander so you can get their Blitz value all over again
From combo decks finishing with Thassa's Oracle to grindy, resilient decks dominating long games, the graveyard does a bit of everything