Some cards you just wish were a tiny bit better so they would be playable. Many rogue decks include cards that fit that idea.
I wish Nidoking from Triumphant was better. His attack is pitiful, and his body is not very impressive (compare him to Ttar prime)
I run a nidoking/nidoqueen deck... It's quite sad when you replace the nidoking for a better attacker. I was thinking Ttar prime to replace him.
I also was going to replace him with another card I love that I wish were better.
2+dce for 100? Yes please! 20 in between turns with nidoqueen? awesomecake!
Obviously with the new format he will be rotated. Sadface.
Lastly, a support pokemon that I wish was more useful:
I always thought Lumineon would be great in SP decks as a 2-2 tech or something. You get Lumineon in your active, then you use its power; it lets you put an opponents basic onto their bench. Not only can you do this and force them to drop a mesprit/uxie/azelf/spiritomb(tr) to prevent them from using it's power (its not their turn, they cant activate it), it lets you secure prizes without luxray and even if they don't play them. Lategame, wouldnt you love to poketurn your active garchomp c, promote lumineon, force them to place a pokemon and swap it active, then promote ambipom G to OHKO it? Or garchomp C to snipe the bench if you forced them to drop a regice? Etc?
The thing is though, it has 80 hp. It's also got a lightning weakness (LUXRAY). I wish it had 100 hp, and a weakness to grass instead...
Reminder: this isn't about the discussion of how to use the cards. It's about cards you WISH were better.
I wish Nidoking from Triumphant was better. His attack is pitiful, and his body is not very impressive (compare him to Ttar prime)

I run a nidoking/nidoqueen deck... It's quite sad when you replace the nidoking for a better attacker. I was thinking Ttar prime to replace him.
I also was going to replace him with another card I love that I wish were better.

2+dce for 100? Yes please! 20 in between turns with nidoqueen? awesomecake!
Obviously with the new format he will be rotated. Sadface.
Lastly, a support pokemon that I wish was more useful:

I always thought Lumineon would be great in SP decks as a 2-2 tech or something. You get Lumineon in your active, then you use its power; it lets you put an opponents basic onto their bench. Not only can you do this and force them to drop a mesprit/uxie/azelf/spiritomb(tr) to prevent them from using it's power (its not their turn, they cant activate it), it lets you secure prizes without luxray and even if they don't play them. Lategame, wouldnt you love to poketurn your active garchomp c, promote lumineon, force them to place a pokemon and swap it active, then promote ambipom G to OHKO it? Or garchomp C to snipe the bench if you forced them to drop a regice? Etc?
The thing is though, it has 80 hp. It's also got a lightning weakness (LUXRAY). I wish it had 100 hp, and a weakness to grass instead...
Reminder: this isn't about the discussion of how to use the cards. It's about cards you WISH were better.