Odin's wife and the step-mother to Thor and Loki is coming to Spotlight Caches. She raised Odin's famous kids in addition to their three shared children. She's here to help you get the most out of your children (small cards) and, like her husband Odin, she helps you repeat some desirable effects.
How useful is copying?
We've already seen how powerful copying a card can be. If you've played a lot of games with Nico Minoru, you know how often her copying spell is valuable. Frigga giving you a copy of your last card, rather than your next one is different, but has similar potential. I actually think Nico and Frigga will appear in decks together since Nico provides some nice redundancy for copying and Nico's stat-boosting spells also work well with Frigga. Additionally, any Destroy player, as well as anyone playing cards like Silver Sable or Cassandra Nova, knows the power of copying cards in Cloning Vats. Copying can clearly be a powerful effect in Marvel Snap; the question is if it will prove valuable enough to play a 3/3 On Reveal card to do it.
Key Synergies
There are three types of cards that will work best with Frigga: power scalers, disruption, and cards that benefit from being stacked. Cards that directly grow in power and can then be re-used to scale higher, like Sage, and cards that boost others, like Mjolnir, can be profitably copied by Frigga. Disruptive cards, like Black Widow, can become far greater annoyances when repeated. Silver Sable fits both criteria! Cards that become more powerful when stacked, like Cerebro, are also a consideration. There might be a couple of 4-cost cards that will work with Frigga, but in general she'll be best with lower cost cards since you need time to play the card, copy it with Frigga, and then play out the copy.
Self-scalers
These cards are best when they can be used more than once. That's why they've seen such success in Bounce archetypes or with Odin. Frigga could be their next enabler, since the copy you get will keep its boosted power. I'm more skeptical that cards that boost others, like Ironheart, Silver Surfer, and Forge will be as useful with Frigga.
Moving Scalers
You can also copy a buffed move scaler to your hand to get an already buffed copy that can then be further boosted. Furthermore, you can also copy their enablers instead, depending on what board state you find yourself in.
Destroy Scalers
Cloning Vats and Nico Minoru have demonstrated how valuable copying your destroyers can be (or Death or Deadpool). Destroy decks are established and tight though, so Frigga will have to fight for her place in that archetype.
Tokens that boost
Getting an extra Mjolnir or Stormbreaker is hypothetically strong. But getting these early enough to be useful may prove challenging. King Eitri, who is being released later this month through Deadpool's Diner, could help with that, though. Asgardian Frigga decks may have to wait a bit. Frigga might be able to bolster Daken since she's got some potential in copying cheap discarders like Blade and Colleen Wing anyway.
Disruption
What's more annoying than being hit with these again and again?
Soft Synergies
Tech
Playing out tech cards early and then having them available to repeat later is probably too slow/expensive to build around and Grandmaster is likely more suited to that task. Still, they're worth keeping in mind while deck-building since you might be including one or more of these anyway. In particular, the cheaper ones like Shadow King, Rogue, and Red Guardian may prove fruitful with Frigga when things happen to come together perfectly.
Stackable Ongoings
There are a lot of Ongoings that are powerful when they're duplicated, as Mystique has often shown. Unfortunately, Mystique's best target, Iron Man, is probably too expensive to be copied usefully, as are the other powerful 5-Cost Ongoings.
ScoSco’s Day 1 Frigga decks
Collector is back! To me, Frigga has the most potential in decks that have meaningful plays for her on turns 3, 4, and 5. With a low-curve, filled with scalers, Bounce may fit the bill.
Frigglector
Black Swan has felt good-but-not-great in Bounce, but Frigga increases her utility noticeably.
Friggin Bounce
I like how Frigga allows me to repeat some of the most disruptive and, frankly, irritating aspects of this deck. I think flex cards like Grandmaster and Silver Sable make it especially frustrating to play against, but you could also try to squeeze Cosmo or Shang Chi in here. This deck could also sneak in an Ajax/Hazmat package as well or even swap them in instead of the Darkhawk pieces.
FrigHawk
The idea behind this Zoo deck is that you can afford to play Cosmo over Caiera since you can copy Cosmo to help with some tricky matchups. Ideally, you can copy Mockingbird early enough to be able to play a second one. Otherwise, Dazzler and Marvel Boy are great Frigga targets. It remains to be seen if this is an upgrade over the Gilgamesh version, but at least it's worth a shot.
Friggin Zoo
Here are two alternate ways to utilize Frigga in move decks. My suspicion is that Frigga will feel best with an extremely low curve, so I'll be starting with the first one.
Let's Friggin Go! (Low)
LFG 2
This relatively low-CL-friendly destroy deck is hyper-focused on making huge Venoms and Deadpools.
Copy Destroy
Final Thoughts
Frigga has a powerful effect, clear use cases, and a plethora of synergies, but she's just expensive enough and with a small enough body that there is some bust potential. Until we can actually play with her, we won't know how it feels to copy the previously played card, as opposed to the following one like with Nico Minoru. I would definitely recommend waiting until later in the week to make a decision on Frigga. Her spotlight mates, Red Guardian and Copycat are both good, playable cards, though, so if you're missing either it's a great week to open Spotlight Caches.