They are based on the archetype of cards with the same name featured in the OCG / TCG
Speaking of other cards you can include, Traptrix Dionaea, another main deck one that either summons a Traptrix from grave in defense when shes normal summoned or when shes special summoned lets us reset a normal trap from our grave, but we banish it at our next end phase
Some cards like Raigeki and Swords of Revealing Light have cards designed specifically to counter them Anti-Raigeki and Weather Report
There's no such thing as "then if you do", simply it should be changed to "then" if you want it to be two separate effects
You lose out on very little by adding this to your decks as a piece of graveyard hate that isnt worthless if nobodys playing graveyard stuff
C Common Kagero the Cannon Ninja X FIRE Level 4 [ WarriorEffect ] ATK 1600 DEF 2000 If this card is Normal Summoned, Special Summoned, or flipped face-up: You can Special Summon 1 "Ninja" monster from your hand or GY in face-down Defense Position, except "Kagero the Cannon Ninja"