Cards I've come up with. I'll be posting more as I think of them

[[Dark]~Yasha]

Advanced Fusion Art - Normal Spell

 

Select 1 Normal Fusion Monster from your Fusion Deck. Send Monsters from your Deck to the Graveyard who are listed as Fusion Material Monsters for the Fusion Monster. During your second Standby Phase after this cards activation, Fusion Summon the selected Fusion Monster from your Fusion Deck.

 

Holy Blessing - Normal Spell

 

Discard 1 card from your hand. Select 5 Fairy-type monsters in your Graveyard and roll a six-sided die. If the result is 1-4, Special Summon 1 on your side of the field, if the result is 5, Special Summon up to 5 on your side of the field, if the result is 6, destroy all cards on your side of the field except Fairy-type monsters.

 

Foolish Summon - Normal Spell

 

When you activate this card, your opponent must Special Summon a level 4 or lower monster from their Deck to their side of the field in face-up attack position, if they cannot, you may Special Summon a monster from your Deck in face-up attack position.

 

Pot of Removal - Normal Spell

 

Draw cards from your Deck equal to the number of cards you have removed from play. During the End Phase of the turn this card was activated, remove from play all cards in your hand.