Gain 7 life, draw 7 cards, put 7 permanents from your hand onto the battlefield
Modern-day iterations of these Dual Lands will have some type of drawback to using them, either by paying life for them to come into play untapped like the Shock lands, or more commonly, not having a basic land type associated with them
The average CMC of a deck is also a good reference point, with burn and aggro decks having a low average CMC and midrange decks having a higher CMC.
So, I added in potential planeswalker Ral Zarek, featured in the Duels of the Planeswalker game
We have a dinosaur already in Pygmy Allosaurus above, so why not more
Then we have the instant Teferi's Protection in White that phases out your stuff to shut down interaction, mass removal, and more