Combos you can make is
Use dark fusion and then you use dark calling to have at least two or more fusion monsters on the field.
The combo we all know is that when you attack you can use mask change but in this deck you use the quick play spell card call from change and you can set the card and wait to your attacks a fusion monster and then you activate from change.
You can try to summon evil hero malicious fiend first because he make all face down monster to face up and all of the monster have to attack
evil hero malicious fiend.
And the wicked Avatar is for a fusion materials or you can try to summon the wicked Avatar for fun.