It was only when alternate mana acceleration like Mana Vault got taken away that players finally noticed how good Metalworker was and started tuning their decks with Metalworker in mind
Then the two-drop Simic legendary dork is great with the ability to care about Towns too and make dorks for free and then activates for all colors of mana for an Overrun too
Homunculus The single-eyed homunculus players associated with Fblthp, the Lost has been around since Sneaky Homunculus back in Nemesis
Those would be the three Eldrazi Titans: Emrakul, the World Anew, Ulamog, the Defiler, and Kozilek, the Broken Reality
Precons are good to go, and the real question for them is which expensive MTG cards to upgrade them with
Saskia could honestly use this, also