I'll try some chances of what it could be:
1 - It could be a more powerful version of gardevoir ex (Ex Sandstorm), like this:
maybe 2 energy a modified feedback - "10 damage for each card in both players hand"
maybe 4 or 5 a modified psy storm - "20 damage times the number of energy attached to gardevoir lv x and the defending pokemon"
HP - 150
Weakness - psychic x2
Resistance - none
retreat cost - 2 or 3
Now this would be nearly one of the biggest lv x ever (among few)
also it could be a sniper:
an attack like feedback, BUT instead of attacking the defending pokemon we could choose anyone
same thing for psy storm
of course i'm doing all of this based on gardevoir ex from Ex Sandstorm
i'm sure it will be powerfull if it's done any other way
1 - It could be a more powerful version of gardevoir ex (Ex Sandstorm), like this:
maybe 2 energy a modified feedback - "10 damage for each card in both players hand"
maybe 4 or 5 a modified psy storm - "20 damage times the number of energy attached to gardevoir lv x and the defending pokemon"
HP - 150
Weakness - psychic x2
Resistance - none
retreat cost - 2 or 3
Now this would be nearly one of the biggest lv x ever (among few)
also it could be a sniper:
an attack like feedback, BUT instead of attacking the defending pokemon we could choose anyone
same thing for psy storm
of course i'm doing all of this based on gardevoir ex from Ex Sandstorm
i'm sure it will be powerfull if it's done any other way