Like most Magic: The Gathering cards, the value of Enduring Renewal depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Time Spiral Timeshifted)
Limit Break -- Remove three limit counters from Aerith: Prevent all damage that would be dealt to you this turn
Thrum of the Vestige Getting blown out by a single is going to feel rough, so watch out with your Blitzball Shots
That just "helps." But Im starting at the end here
Sphere of Resistance Spike Feeder Stroke of Genius Sunder Vernal Bloom Volrath's Stronghold Wildfire Windfall Wood Elves Worn Powerstone Worship So lets have a quick crack at this combo/powered list as it would seem remiss not to at least touch on some of the most pivotal cards in MtGs combo history
Also, cards that get a card from outside of the game (Living Wish, Cunning Wish, Research // Development, etc) are also not allowed