How well the card fits into Limited play
While there is a downside (the revived creatures enter the battlefield tapped) we are normally getting so much value out of death and enter-the-battlefield (ETB) effects that the creatures entering tapped does not really matter
But look at the abundance of food that guy in the foreground is offering
Geller learned of the similarity after fans of both himself and Pokmon noted the similarities between him and Kadabra, [114] [115] He remarked that the lightning patterns on its abdomen is popular with the Waffen-SS and that Nintendo had "turned [Geller] into an evil, occult Pokmon character"
Japanese Pokmon cards differ from Korean Pokmon cards and English versions in areas like print quality, release timing, and card design
Kellan's special ability gives your other creatures +1/+0 for each aura and equipment attacked to Kellan, turning not only Kellan into a powerhouse, but all your creatures with him