I also made pokemon yugioh customs: (note these are used in a pokemon x yugioh arc-v fanfic I'm doing)
Pocket Monster - Charizard: Lvl: 7: Attribute: Fire: Type: Winged - Beast/Pendulum/Effect: Scale: 4: 2500ATK/2100DEF: Pendulum Effect: If there's a scale 6 or higher in your pendulum zone, this cards scale becomes 0 Effect: This card is treated as a DRAGON-Type monster. If this card destroy's a monster: inflict demage to your opponent equal that destroyed monsters ATK.
Pocket Monster Evolution - MEGA EVOLUTION Gate: Spell/Continuous: Effect: Once per turn, add 1 "Mega Pocket Monster" from your deck to your hand. During your battle phase, tribute 1 "Pocket Monster" you control, special summon 1 "Mega Pocket Monster" with that tributed monster's name in it from your hand. At the end battle phase, return that special summoned monster to your hand, special summon the tributed monster.
I made more but i just wanted to share these two.