Gathering cards Browse the whole card pool by color identity, type, mana value, price and by what a card does (ramp, draw, removal, wipes, tutors, tokens)
Luminous Broodmoth (Mothra, Supersonic Queen alternate) | Illustration by Nick Southam I highly doubt that the Godzilla cards will ever be reprinted
A collector may deem a card valuable if its from an older set, if it contains nostalgic value for them, or if its increasing in monetary value over time

Tundra - Alpha: Black ink aligned slight right, blue dots in crescent - Beta: Black ink aligned further right, no dots in crescent Savannah - Alpha: Black ink aligned slight down - Beta: Black ink aligned up Bayou - Alpha: Black ink aligned down - Beta: Black ink centered Scrubland - Alpha: Black ink aligned right - Beta: Black ink centered Plateau - Alpha: Black ink aligned down - Beta: Black ink aligned slight right - Note: Beta Plateau's have a unique print error (see next section) Badlands - Alpha: Black ink aligned slight right - Beta: Black ink aligned right Other Alpha Rares Copy Artifact - Alpha: Black ink aligned down and left - Beta: Black ink centered Mind Twist - Alpha: Black ink aligned down - Beta: Black ink centered Balance - Alpha: Black ink aligned down and right - Beta: Black ink centered Wrath of God - Alpha: Yellow ink along border edge - Beta: Centered Shivan Dragon - Alpha: Black ink aligned down and right - Beta: Black ink centered Fork - Alpha: Black ink aligned down - Beta: Black ink aligned slight right Chaos Orb - Alpha: Black ink aligned down and right - Beta: Black ink more centered Time Vault - Alpha: Yellow ink along border edge - Beta: Centered Alpha Print Defects Some Alpha Rares have print defects which can be used to help identify them from clipped Beta

So while I can advocate devoting more cards in the deck to mana production, its impossible to devote more slots to each of the other elements as well
At first glance, this may seem underwhelming, as Toxic does not deal immediate damage