It's a win con for X-Matters decks, a synergy for counter decks, a ramping option for that color, and loads more
It only kills creatures but then it only costs four and no more
(11/10/2023) If you cast a spell "without paying its mana cost", you can't choose to cast it for any alternative costs
You need to treat pulling The One Ring the exact same way you would winning the lottery
But an Obzedat's Aid recursion would work once, and then a Bojuka Bog once, and such, you want this to be recursion
Using the green ramp paired with blue and red's control elements, he is taking advantage of what some of the new Dragons have to offerand headlining his Dragonmaking engine is none other than Sarkhan himself