Since Pelliper only has 70HP, they would just have to evolve their Ralts into Kirlia. After that, Gardevior lv.X could bring down and even with Pelliper having the same HP as Absol, they can choose Pelliper to bring down. Pelliper only does 50 damage, so it's not like it could two-hit KO Gardevior lv.X under any circumstances.
I feel you can't just throw a counter out like that in today's format. Decks have too many options now, and if you find a pokemon that can hurt Gallade, Gardevior will just step up. If you find a pokemon that can hurt Magmortar, Delcatty ex will just step up. If you are immune to Sonic Blade, they will just Bring Down your benched pokemon. If you can't be sniped on the bench, they will just burn your active and KO it in the same turn with multiple scramble energy.
The days when a player could just run a counter to the big decks and do as well as the big decks is over imho because there aren't as concrete counters anymore.
I feel you can't just throw a counter out like that in today's format. Decks have too many options now, and if you find a pokemon that can hurt Gallade, Gardevior will just step up. If you find a pokemon that can hurt Magmortar, Delcatty ex will just step up. If you are immune to Sonic Blade, they will just Bring Down your benched pokemon. If you can't be sniped on the bench, they will just burn your active and KO it in the same turn with multiple scramble energy.
The days when a player could just run a counter to the big decks and do as well as the big decks is over imho because there aren't as concrete counters anymore.