PRO Loki's Gift is always (D)?

See Rötschreck vs Psyche!

Name: Rötschreck
Cardtype: Master
Master: out-of-turn. Frenzy.
Put this card on a vampire when an opposing minion attempts to inflict aggravated damage on him or her, whether the damage would be successfully inflicted or not. Combat ends. This vampire is tapped and sent to torpor. This vampire does not untap as normal. During this vampire's next untap phase, burn this card.

Name: Psyche!
Cardtype: Combat
Discipline: Celerity
[cel] Press.
[CEL] Only usable at the end of a round when both combatants are still ready and combat is about to end. After this round, begin another combat with the opposing minion.

If vampire A plays Psyche! to start a new combat after Rötschreck has been played on him or her, A gets the card, but isn't tapped and doesn't go to torpor. (you can't apply these effects before combat ends).

Miasmat wrote:

I read it as the SUP adds to the first sentence, since it doesn't much make sense to add it to the "A vampire can only have one Loki's Gift."

So, I read the SUP as "Gain 1 blood and this card, and burn a blood from any vampire." so I figured that was good enough to make it simultaneous effects so I could order them how I like. The second and third sentence of the basic is just a description of what you can do with the card while it's on this vampire - the actual resolution of the action is all in the first sentence of the basic.

But you're arguing that it's actually "Gain 1 blood and this card. This vampire can burn this card and 1 blood to get +1 stealth. A vampire can have only one Loki's Gift, and burn a blood from any vampire." which seems crazy-talk to me.

not at all. You read it correctly, but you can't order the effects the way you want. So it's: gain 1, put the card on the vampire, burn 1 blood in that order.