most expensive cards in lotr mtg set chase Top 10 MTG Cards From LOTR: Tales of Middle-earth The Lord of the Rings:

When you attack, Clavinelo turns one of your attacking vampires into a Demon, and gives them a permanent ability

Was it something else

This doesnt double as a finisher itself the way that Finale of Devastation does, except that casting this for x=8 and finding Craterhoof Behemoth is usually close enough

Your permanent's echo ability will trigger at the beginning of your upkeep if it entered the battlefield since the beginning of your last upkeep, or if you gained control of it since the beginning of your last upkeep

Ill get to the main list momentarily, but first Dishonourable Mentions Skyclave Apparition I know Skyclave Apparition is a good card and I accept that its probably better for the game that it exists