How do I set holograms on single-use magic cards and traps?
There is no hologram for single use spells or traps. The ones present in master duel are 3D animations that play. Holograms are 2D images that hover above the card. The summon animations are animations are 2D animations and can be relatively easy to create compared to the 3D ones.
I would like to set a hologram that appears momentarily when I play, is that possible? For example, when you use the Pot of Greed.
At the moment, to my knowledge there is not.