As one of Magic: The Gatherings most popular and powerful planeswalkers, Jace Beleren has seen plenty of iterations and planeswalker designs over the years
You also get no maximum hand size for the rest of the game, preventing you from discarding the 40+ cards you just added to your hand
If you controlled the token, Knight of Doves's ability will trigger
Creature (28) 1x Bramble Elemental 1x Deathspore Thallid 1x Dreampod Druid 1x Elvish Farmer 1x Garruk's Horde 1x Jade Mage 1x Korozda Guildmage 1x Mycoloth 1x Nemata, Grove Guardian 1x Overgrown Armasaur 1x Psychotrope Thallid 1x Savage Thallid 1x Sporecrown Thallid 1x Sporemound 1x Sporoloth Ancient 1x Tendershoot Dryad 1x Thallid 1x Thallid Devourer 1x Thallid Germinator 1x Thallid Omnivore 1x Thallid Shell-Dweller 1x Thelonite Hermit 1x Tukatongue Thallid 1x Utopia Mycon 1x Verdant Force 1x Verdeloth the Ancient 1x Vitaspore Thallid 1x Yavimaya Sapherd Land (43) 21x Forest 20x Swamp 1x Tainted Wood 1x Woodland Cemetery Enchantment (10) 1x Fists of Ironwood 1x Golgari Germination 1x Greener Pastures 1x Night Soil 1x Oakenform 1x Saproling Burst 1x Saproling Cluster 1x Saproling Infestation 1x Sporogenesis 1x Verdant Embrace Artifact (4) 1x Druidic Satchel 1x Mox Diamond 1x Sarpadian Empires, Vol

Overall, this card should see play in decks looking to capitalize on graveyard interactions and creature recursion
No Mercy with a shoutout to Dissipation Field 8878 and 5972, respectively