Where Elas shines is as a commander
The options are: Match colors exactly: If you simply pick two colors (lets say black and red) and look for cards, Gatherer shows you cards that are mono-red, mono-black, Rakdos, any two color combination with black or red, and three-or-more-colors combinations that include either of the chosen colors
The card is so powerful that it remained forbidden from competitive play for many months, even with severe restrictions attached to the TCG version
Like Machamp, it also requires you to run Grass energy alongside Psychic energy
SR Super Rare Destiny Signal X TRAP When a monster you control is destroyed by battle and sent to the GY: Special Summon 1 Level 4 or lower "Destiny HERO" monster from your hand or Deck
Surprisingly however whether due to limitations or design choices (its hard to say what is what in these early games) this game does introduce a hard deck limit of 40 cards which at the time the TCG did not have and took someone exploiting in a tournament with a deck that was so big it had to be carried by two people to get a rule set in place although that rule would settle on between 40 and 60 in the TCG