Solrocks Sun Energy brings a lot of Energy into play by attaching Psychic Energy to Lunatone, and then both Lunatone and Mewtwo VSTAR can make use of that Energy via their Moon Kinesis and Psy Purge attacks, respectively
If the number of cards in defending player's hand minus the number of cards in your hand is 0 or less, you won't draw any cards
To make your cards abilities sound legit, look for cards with similar effects
Akromas Will Akroma's Will offers as much protection as you could want to prevent your creatures from taking damageand, thanks to that keyword suite, it prevents your opponents from taking any more turns if you have enough creatures
That inspired me to make a template for J to use to design his own cards too
For example, Hermit Druid requires a mass of non-basic lands, which didn't really exist at the time