These cards have been banned for various reasons, mostly because theyre exceptionally powerful or easy to abuse, while others are because they break the flavor of the game now
The mass-trample is cheap and useful, but the other ability is pretty iffy
Prices pulled directly from TCGplayer highlight a few essential trends: Icon cards dominate : Holo raritiesespecially Charizard, Blastoise, Venusaurcommand huge premiums due to their nostalgia, limited old print runs, and iconic artwork
One of the main arguments I see is that since Magic has already expanded beyond its own limits with novels, comics, video games (remember Magic Legends
Top-tier usability plus some of the most gorgeous artwork in the Obsidian Flames set makes it a worthy card to collect and use in play
On your upkeep you can cast a free permanent that equal to or greater (by one) your highest card