Help Identifying Three Old Pokemon Cards

[Christopher Lloyd]

Hey everyone,

I got these cards back in circa late 1999. I cannot remember much about them, other than they seemed to be fairly highly desired at the time, but I kinda fell-off the card kick and forgot what I once knew about it. Anyone know anything about these cards?

 

[suraci]

Venasuar: The venasuar's ability is like lunala's but for grass energy (as often during your turn, you can move grass energy). Obviously, its second attack is a 4 energy move for 60 damage
Slowking: 1st move, flip a coin and if heads, search for a trainer. The second move does 10 plus ten for each energy on the defending mon
Nidoking: Flip a coin, if heads, this attack does 40 and if tails, this attack does 30 damage to Nidoking. The Second move does 20 damage and poison's the opponent, but the poison does 20 damage instead of 10