new here and have some questions

[GunShells]

hey every one...im new to the site but ive been playing magic for about thirteen years off and on....i just recently got back into it and have a question about the set symbols..i know that whne its gold it means its rare and that if its silver it means its uncommon and red is mythic rare....but what does it mean when its purple? i just got two cards (four really but they are doubles) one is a white card from the Time Spiral set and its called Akroma, Angle of Wrath and the other one is Darkness, a black card also from Time Spiral...im just wondering what the purple symbols are and if that makes them rare... thanks for the help

[TauntingElf]

Those are Time Shifted cards

Timeshifted cards
To further represent the temporal chaos afflicting Dominaria, Time Spiral was released with an additional sub-set of 121 Timeshifted cards, reprints of select cards from every set prior to Mirrodin. The Timeshifted cards were updated to meet the current rules and keywording. To differentiate them from normal cards, Timeshifted cards are printed in the pre-8th Edition card frame, with a purple Time Spiral expansion symbol. The Timeshifted cards are distributed one per booster pack and three per tournament pack (taking the place of common cards), and also appear in the preconstructed decks. According to DCI-distributed tournament primers, Timeshifted cards are tournament legal where Time Spiral or the set of original printing are.[5]

Timeshifted cards also appear in Planar Chaos and Future Sight, but are not direct reprints of older cards.

Time Spiral - Wikipedia, the free encyclopedia

also see here

The Purple "Timeshifted" Symbol Frequently Asked Questions Thread - MTG Salvation Forums

Timeshifted Cards! : Daily MTG : Magic: The Gathering

[Baelog]

What is the rarity on these timeshifted purple symbol cards? Like are they common, uncommon or rare in terms of production?

[TauntingElf]

It says one per booster so I guess they're like rare cards since those are also 1 per booster