You can tap any three untapped artifacts and/or creatures you control, including Warden of the Inner Sky itself and other creatures you haven't controlled continuously since the beginning of your most recent turn, to pay the cost of Warden of the Inner Sky's activated ability
This set coincides with the return of the Mega Evolution mechanic in Pokmon Legends: Z-A , though it will work slightly differently there, being tied to a timer
The unique design draws your focus to the center, where broken tree stumps bend to face each other
With DCE legal and commonly played, he's STILL splashed into every deck today, just for the versatility and late-game cleanup power he can have
Braids, Conjurer Adept immediately springs to mind, as does Jodah, Archmage Eternal