Here's some fixed-up wording, for all your cards:
Scipio's Ralts
Confusion is fine. "Defending Pokémon" is ALWAYS capitalized. Always.
Second attack: Switch Scipio's Ralts with 1 of your Benched Pokémon. If the Pokémon you chose has Scipio in its name, you may search your deck for Scipio's Kirlia, show it to your opponent, and put it into your hand. Shuffle your deck afterward.
Numbers are always written as numbers.
Scipio's Kirlia
First move: Flip a coin. If heads, this attack does 20 damage to 1 of your opponent's Benched Pokémon.
If you want Weakness and Resistance to be ignored by the damage to the Bench, add "(Don't apply Weakness and Resistance for Benched Pokémon.)" after that sentence, in italics. Anything in parentheses is always in italics.
Second move: Does 20 damage plus 20 more damage for each of your Benched Pokémon with Scipio in its name.
Scipio's Gardevoir
Body: Whenever your Active Pokémon takes damage from an opponent's attack (even if your Active Pokémon is Knocked Out), and your Active Pokémon has Scipio in its name, put 1 damage counter on the Attacking Pokémon.
Damage counters are always PUT, not PLACED.
First attack: During your opponent's next turn, damage done to Scipio's Gardevoir by opponent's attacks is reduced by 20 (after applying Weakness and Resistance), and Psyburst's base damage is 100 until the end of your next turn.
Scipio's Erlade
Power: Once during your turn (before your attack), you may put 1 damage counter on Scipio's Erlade. If you do, Psycho Cutter does 10 more damage to the Defending Pokémon.
First move: During your next turn, Scipio's Erlade's Psycho Cutter attack's base damage is 80.
Scipio's Skitty
I'm pretty sure the body is wrong... but I'm not sure how to make it right.
Scipio's Delcatty
Again, the first part is surely wrong but I don't know how to fix it. As for the second sentence, it should be: If heads, that Pokémon can't attack during your opponent's next turn.
Second attack: Does 20 damage plus 10 more damage for each damage counter on each player's Scipio's Skitty and Scipio's Delcatty.
Delcatty *
First move: The Defending Pokémon can't retreat.
Second move: PUT 2 damage counters... not PLACE. Otherwise, good.