Theyve definitely been getting worse recently, but I still like Rook Turrets stat line, and fortunately the ability should be very relevant
With Hexavus, instead of reloading only by exiling the little Tetravites buzzing around everywhere, you can tap Devoted Druid to make a green mana then untap it, use that mana to pay for Hexavuss second ability (and in the process removing the -1/-1 counter from the Druid), and repeat
This is certainly not going to be anywhere near as powerful as that was, but assuming you get enough caves, this should be a powerful sweeper nonetheless
Adding green gives you some powerful flexibility options, and Sidisi, Brood Tyrant makes more zombies for free
Crawlspace - Two creatures maximum per turn can attack you, which works well to limit go-wide decks, but won't stop a Voltron commander from smacking you
Dragon Shield requires an internet connection and struggles to identify cards across different set printings