Archdruid's Charm ($7.00) The newest member of the mega-mega cycle of charms is very versatile, with removal, buffing, tutoring, and landfall rolled into one sweet 3-mana instant that fits in any mono-green deck
If you already controls monsters on your side of the field, you can send them all to the Graveyard to Maximum Summon
Land Level Up on just about anything and it'll become a monster in just a few attack steps, not to mention it'll start drawing cards at some point, too
It does nothing against Living End and 4 color and it is just okay against Murktide
If Summoning an "Elemental HERO" Fusion Monster this way that requires 3 or more materials, and you control 2 "Elemental HERO" monsters that are mentioned on it as materials, you can also use monsters in your Deck as Fusion Material
Outlaws of Thunder Junction boosters can also contain cards from The Big Score (BIG)