Some notes:
1)This is version EX8 once bt 19 releases the deck will look very different, I will be updating this list once bt19 is live.
2)You can replace ex4 renamon for your choice of floodgates depending on local meta, due keep in mind having only renamons helps with the rika effect and can save you in niche situations.
3)Your biggest threats are 7 great demon lords and Royal knights, both are difficult decks to deal with due to how hard to control they can be, aegisdramon makes this matchup alot easier.
4)Put pressure, dont sit on sakuya or ruin, make tokens attack attack attack.
If on a budget you can replace ruin with boltboutamon or more aegisdramon/ shine burst mode ace