Be warned that most of these are based on legendary Pokmon and as such some may be overpowered, and most of these are not meant to be a Deck at all
Ramp, Lands, Rocks Normally I'd steer clear of Mana Rocks in Green
And with enough counters, the creature gets new stats and abilities, noted in those little "LEVEL 3-7", "LEVEL 8+" boxes on the card ( in the case of Hexdrinker, with the top end granting you the legendary Progenitus effect of Protection from Everything
This is where the issues begin, and it serves as a good segway into the odd/missing elements of this game
Thought-Knot Seer Hand disruption on a solid body is what Thought-Knot Seer brings to the table
It's one of those cards that will define the era when people look back on it and the current price, while not cheap, is probably fair for what you're getting