white card sleeves The Pennysleever popular Thick (100 count) which is enough to protect an entire deck and extra cards Card Sleeves MANA-MINIMALIST White Mana

Swampwalk is very situational, but gaining life from your opponents black spells is neat

If you don't share that opinion, there are plenty of better cards to run instead that we'll get into later

Mistys Cerulean City Gym Trainer Stadium Starmie-GX (both yours and your opponents) does 40 more damage to the opponents Active Pokemon (before applying Weakness and Resistance)

Cards added all the way back when the game first launched, like Poke Ball and Professor's Research, are fundamentally part of any competitive deck in Pokemon TCG Pocket for this exact reason

However, Palkia is basically a more powerful Articuno ex card and should see a bunch of play immediately in its place