Elspeth, Gideon, and Ajani are good planeswalkers to have among your creature-heavy decks, and good examples are Gideon Jura, Gideon, Ally of Zendikar, Elspeth, Knight-Errant, and Ajani, Adversary of Tyrants
What Is Manaless Dredge
If you're starting from zero, the best choice is a booster box or ETB from a modern set sold near MSRP with strong chase cards
Important things to note are that Yawgmoths Will does exile itself upon resolution, cast your spells with Threshold first, and to always make sure you leave enough instants/sorceries in your graveyard to enable spell mastery on Dark Petition
Does your deck reliably manipulate the top of its library (via draw, Scry, Surveil, or some other method) to help smooth your draws so you hit the Lands and other mana sources you need
(2024-04-12) If you dont want to cast the copy, you can choose not to