mtg phyrexia all will be one green cards Goliath Hatchery [Phyrexia: One] Return that card to the battlefield under its owners control at the beginning of that players next end step.[ ±0] MTG: Phyrexia: All Will Be

If aristocrat (sacrificing things to trigger effects) is your strategy, hed make a great Commander

Celestial Kirin Kataki, War's Wage Kiyomaro, First to Stand Michiko Konda, Truth Seeker Rune-Tail, Kitsune Ascendant

These are crucial to maximize the impact of your creatures

One of those is Liberty Prime, Recharged

When both of these cards are on the battlefield, Urborg, Tomb of Yawgmoths ability gets overwritten by Blood Moon turning it into a Mountain

It's worth noting that this can't reduce the cost of the Seek Thrills half of the card, or any other adventure, for that matter, because, as of now, none are permanents