Blaine’s Moltres - Add an attack like like the Plasma attack on Rocket’s Zapdos, but with fire energy and 10 damage.
Brock’s Rhydon - Change Bench Guard to something like “whenever 1 of your benched pokemon is damage, you may reduce that damage by 10” OR change the Lariat attack to an attack that does more damage if Brock’s Rhydon has more damage counters on it, so it has good synergy with the Bench Guard power.
Erika’s Clefable - Add a tails effect for Fairy Power: you may return 1 of your pokemon in play and all cards attached to it to your hand or deck.
Misty’s Seadra - No Retreat Cost.
Misty’s Tentacruel - 80 HP
The Rocket’s Trap - Change it so that if you get tails, your turn ends.
Brock’s Onix - 80 HP OR change Tunneling so that Brock’s Onix cannot use that attack next turn, but can still use Bind.
Lt. Surge’s Electabuzz (Non-Holo) - 70 HP
Misty’s Poliwrath - Add a second attack or power such as "once during your turn (before you attack), if this pokemon is active, you may search your deck for a card with “Misty” in its name and add it to your hand. Shuffle your deck afterward).
Blaine’s Magmar - 70HP, and h ave Firebreathing do 20 damage OR flip 2 coins instead of 1.
Brock’s Geodude - Have Lucky Shot do 10 damage if tails.
Brock’s Golbat - Reduce Retreat Cost to 0.
Brock’s Graveler - Add attack that does 20 damage for 1 fighting energy OR an attack that lets you add a card with Brock in its name to your hand.
Erika’s Exeggcute - Change Egg Bomb so the pokemon does 10 or 0 damage to itself.
Erika’s Exeggutor - 80 HP, and have stomp do 40 damage (no coin flip).
Erika’s Weepinbell - Have Drool do 20 damage.
Misty’s Psyduck - Remove coin flip requirement for Call for Friend.
Misty’s Seaking - 0 retreat cost, change horn attack damage to 20 OR change energy requirement to colorless.
Sabrina’s Jynx - 70 HP, and have Good Morning to 20 more damage if the defending pokemon is asleep.
Sabrina’s Slowbro - remove coin flip requirement for Naptime.
Blaine’s Tauros - Reduce retreat cost to 1.
Brock’s Geodude - remove coin flip effect for Call for Friend.
Brock’s Mankey - make Light Kick’s damage 20 OR change the energy requirement to colorless.