Its not necessarily about stacking up the biggest creature you can, although giant threats can be a game plan unto themselves
it represents one of the most creative ways Pokmon has engaged with its fanbase
Some, like Ardenvale Tactician and Lost Legion are just good on their own (though not the easiest to cast in a multicolor deck)
As posted before, Classic will feature three 60-card decks headlined by Base Set Venusaur, Charizard, and Blastoise
One of the quirks of the Commander rules is that if a mana symbol appears in the casting cost or in the text box of a card, the color of that mana symbol contributes to the card's "color identity." So if you used Ishkanah, Grafwidow as your commander, you could include green or black cards in your deck
Tombstone Stairwell -- $2.99 At first, Tombstone Stairwell may seem like an odd card