Normally, this is a 4/4 Flying, First Strike creature that costs to cast
Key Card Example: Litleo from Prismatic Evolutions Uncommon (U): [Diamond Symbol ] What it is: Evolved Pokmon and more complex Trainer or Item cards
Any ramp spell like Skyshroud Claim or Cultivate also allows you to draw a card
Depicting a Raichu the evolved form of Pikachu on its packaging, the cards hail from Base Set 2 (aka the fourth expansion series), which, according to Bulbapedia, was first released in February of 2000
So long as you're playing with a bunch of cards with good enter-the-battlefield triggers, like Skyclave Apparition, Agent of Treachery, and Deadeye Navigator, you can rinse and repeat until you've taken over the game