Traptrix can play in second

The idea is to have a lot of special summon to allows you to create board or at least to have one sera, 

Dogmatika is very usefull for having a free level 4 and if really needed you can activate the effect to get a 3000 monster for free

In first if you have a good hand you can have easily 3 xyz, you can also choose to finish with one rafflesia and sera + one rikka queen to get 2 additional monster negate by activating rikka in the GY to summon Hyperyton. 

The rikka xyz summon can be usefull when Sera is useless on the board 

The brigandine and rikka are also good in first hand for getting two addition level 4 for free