The first two, Planechase and Archenemy , were Wizards' own creations, eventually drawing on casual formats from the game's own community (Chaos Magic, for example, was clearly an inspiration for Planechase)
Parasect only learns Leech Life (a rather weak Bug attack), but it can use some good status-altering techniques that may help you get the upper hand in a duel with a Psychic
What does Glaceon evolve from
This is a statistical average individual results vary widely
Recoil(with many shout outs to Dismantling Blow, Orim's Thunder, Absorb, Undermine, Aura Mutation, Artifact Mutation, Aether Mutation, Jilt, Agonizing Demise, Probe, and Many More): In some very real ways, this Block was the first time that we had common effects twinned to bonuses such as card drawing, token making, discarding, and more