Happy Pi Day! Raidraptor - Force Strix is a Rank 4 Dark Winged Beast-type XYZ monster with 100 Atk and 2000 Def. I like that this card can be made with any 2 Level 4 monsters. I don't like how weak this monster is. Even with its boosting effect, 100 Atk isn't going to do anything, and 2000 Def doesn't really make up for it. 
 
So the first effect is an Atk and Def boosting effect. This card gains 500 Atk for each other Winged Beast monster you control. So that's a maximum of 2000 Atk boost. 2100 Atk isn't worth the investment. 4000 Def is cute, but walls in this game don't last long with stats alone. The only useful effect is to detach a material and search any Winged Beast monster from your Deck to your hand. Blackwings and Raidraptors love being Level 4 and love Special Summoning themselves, so Force Strix becomes really great in either deck. King of the Feral Imps is universally run in just for a few cards to search. Force Strix should be run to search the majority of the monsters in your deck. Finally, the more Force Strix monsters on the field, the more often you can use this effect. 
 
Score: 4/5 Keep on Flapping. 
Art: 4/5 Mecha Owls are cool. 
 
-WarlockBlitz