pokemon cards tapu koko Koko-GX 135/145 - Guardians Rising Holofoil Lightning Lightning sm4] Tapu Koko GX 032/114〈RR〉

Cursed Recording can give you a similar effect for more mana, but has a huge downside if you're casting multiple spells per turn

A four mana counterspell is not a very good control card as it is so hard to do anything else on the turn you play it, often the mana you gain is just recovering the tempo loss from having a four mana counter

You can have more, but I recommend sticking as close to 40 cards as possible while aiming for a ratio of 24 playable cards to 16 lands, adjusting for your curve as you see fit

Then if you cannot you'll lose the game

With all that said, lets get stuck into which Lorcana starter deck is best for each type of player