Knowing what those cards are becomes part of the information you have access to, just like you can look at the cards in your hand
If you do, create a 4/4 green Rhino Warrior creature token
This templating can be explosive for vehicle decks, as you can have all your vehicles chain-crew one another before the first combat, then have Anzrag untap ALL of them for a huge second swing
If you can put some poison counter-generating cards like Infectious Inquiry and Ichor Rats into your deck, Yawgmoth can proliferate those as well, though this does risk making you public enemy number one at your table
If you're going to run with Zirda as your companion, you'll be packing Illusionist's Bracers to double up on activations and you might as well run the King of infinite mana combos, Kenrith, the Returned King
Ive had a good amount of success with this green creature in elf decks, especially those using Rhys the Redeemed to create a large number of token creatures