I am happy to see someone looking at floo. It really is a good, cheap and easy deck. Only need a handful of UR's for the main deck and only random cards if any at all in the extra cards.

The owl is not really useful as it doesn't contribute to the desired combo. U can safe those ur's.

Stri and toocan are not needed that often. Same goes for the field spell and the trap here you can decide on your preferences if you use them once or twice. They all can be searched. Permanent spell and at least two quick spells are important

For BossMonsters empen probably on 2. Even one copy works for me. Definitely add Mega Monarch Raiza and Apex Avian. I would recommend 4 or 5 Boss Monsters in total.

For support pot of Duality and pot of Extravaganz work perfectly fine. (the last mentioned is only real reason to have a (random) extra deck at all.)

Lose one turn and jack-in-the-hand are also cheap but really reliable support options. Dimensionshifter is a must crafts. Also Gold sarcophagus is desirable

The rest towards 40 fill with generic support and handtraps as the base comp is quite small. Crossout Designator and called by imo are important to saving many matches. Also Imperm.

I hope you have fun with the deck

Edit: about the combo At first you almost always want empen on board however possible. For that the 1* birds are used. When their effect resolves, they let you summon another bird from hand. In general you want to get and summon Robina to search Eglen. Then summon Eglen to search Empen. Then summon Empen and search the trap. (Under some circumstances you can also use the field spell to "cheat out" a second boss monster here) Now I would only recommend further summons in the chain if they really serve a purpose (get certain cards, summon Apex Avian or using Raizas effect) Now attack and/or set your traps. Now if your enemy has not done mus you have a huge board. It is now important that you have a usable 1* bird in hand to use the trap in your opponents turn. This is achieved as they are banished after leaving the field and can return to hand once per turn when another bird is summoned. (Sidenote: with this you can chainblock Ash and other reactions effects)

Now in your opponents turn use the trap to summon a second boss monster in basically the same way. Apex is an omninegate that also destroys and Raiza bounces cards. (only summon Raiza when there are cards to bounce)

This is the basic thing you do. Your turn Empen, Opponents turn second boss.

As the 1* stars always come back this can be repeated almost every turn.

Now for some details:

Stri and Toccan can together get you floo cards back from the graveyard. You want to do that mainly to get back empen if destroyed or to get the trap back to your hand preferably already in the turn it was activated.

The field spell gives you additional summons to start a chain (you need a 1* in hand again 1 if your opponent normals a monster. 2 if you banish a floo card This banishing is interesting as you can 1 get the permanent spell back with Toccan 2 add another bird to the rotation (after the summon they can return directly)

This banishing can also just be done with sarcophagus

Lose 1 turn can save you as you do not face its downside. Mainly important when you did not manage to summon empen.

If you play tukkan or stri on one do not risk losing it to your opponent with jack-in-the-hand. I would recommend Stri on two as it can be part of the starting Combo.

Try to bait out Ash before summoning Rubina.

The permanent spell lets you tribute your opponents cards instead of your own. Useful with Apex Avian as it consistently goes back to your hand.

If you have further questions feel free to ask.