The equipment that gives the bonus is still controlled by you, and still refers to you when it counts the Swamps
Teleporters and Transporters: The three Yliaster members can teleport from point A to point B It was implied when Dark Glass teleported ahead very quickly with Accel Synchro, and was later shown to be true when Yusei achieved it, suddenly sending him from the highway to the crash site of another odd object from space Theme Music Power-Up: This applies to any main character
If the only card in your graveyard is a single artifact creature card, Nethergoyf will be a 2/3
This Black Luster Soldier was reprinted as a legal card in 2023, after existing only as a one-of-a-kind non-game stainless steel card awarded to the winner of the first national tournament
See our full guide on Sideboards in MTG
2014-11-24 Some older Magic sets feature double-faced cards, which have a Magic card face on each side rather than a Magic card face on one side and a Magic card back on the other