The way spins work
1. choose random card
2. if pillar, goto 1 unless this has been done 10 times for this card
3. use 1&2 to choose 5 cards.
4. spin with those 5 cards
5. do this all per spin.
So an easy implementation would be change 2 to if pillar OR SOMETHING THAT RESULTS IN A RELIC AFTER SPIN, etc.
The problem I see is that duo decks that run off of mark get crushed by him, thanks to the nymphs.
so do 1/2 and 1/2 duo decks, unless they are REALLY effective or have spare quanta generatoin (RoL/Hope)
Also, only one generic mono fg-slayer exists, which is anomaly (mono-entropy), and custom decking is stupid when fg grinding.
The nymphs are overkill. It's like giving rainbow antimatters, it's hard enough as it is already.