The one from the series furious fighting fists, because it has excellent combos
The card was designed to be a way to let you trade a card for the ability to flash down a creature at instant speed that didnt normally have flash
For example, in Commander, Ill often begin my green suite with those two spells and then wonder which ones fit the deck next
All you need is a Fabled Passage or an Evolving Wilds in your graveyard, and you'll be able to play it, sacrifice it to find another land, and then put it back into your graveyard all in the same turn, every turn
Foreign White Bordered
Because Doubling Season can allow Planeswalkers to enter the battlefield with double counters, it can create a lot of oops, I win scenarios where one player wins out of nowhere