RDA Themed Arena Duels work similar to regular RDA arena duels, but with some differences.
1. It does not alter your ranked win/loss ratio
2. The winner receives 50 CS whereas the loser receives 15
3. One player must use one of the mentioned decks, whereas the opponent must use the other.
As always it is a TCG/OCG match, confirmation must be from your opponent or a screenshot must be given to show who won and who lost.
In these duels one person must use Crystal Beasts and the other Gem-knights.
by 
Subject: RDA Themed Arena 2 - Crystals Vs Gems 
Calendar