Mikaeus, the Unhallowed Giving everything undying is really nice value, whether you are into ETBs, death triggers or both
Having several cute forest animal friends nearby is also improving the ranking here
Final Fantasy X-2: International+Last Mission Ultimania (in Japanese)
While the mana investment into these abilities are far more involved than that notable creature's, you get the ability to gain flying, a repeatable +1/+1 boost, two protection methods (regeneration and placing on top of library), and the ability to destroy any creature blocking or blocked by Cromat
FromTheShire: Yeah this is giving so much of heads up it only gets there if nobody has removal or a board wipe for multiple turns
The card also featured a poem from the Persian poet Rumi and instructions saying, Koni and Richard continue the game and play all games as partners forever. Because this promotional card was only privately released, it is unknown how many copies exist