Is Kjeldoran Knight legal in Standard, Modern, and Commander?

Kjeldoran Knight is legal in: Legacy, Vintage, Commander.

Kjeldoran Knight

Q: What type of card is Kjeldoran Knight?

Kjeldoran Knight is a Creature — Human Knight. Its oracle text reads: "Banding (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.){1}{W}: Kjeldoran Knight gets +1/+0 until end of turn.{W}{W}: Kjeldoran Knight gets +0/+2 until end of turn."

Creature — Human Knight

Banding (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)<br>: Kjeldoran Knight gets +1/+0 until end of turn.<br>: Kjeldoran Knight gets +0/+2 until end of turn.