You choose which spells (if any) to cast as Forger's Foundry's last ability resolves
Number 230 Language English Legal Formats Commander, Legacy, Modern, Pioneer, Vintage Not Legal Formats Alchemy, Brawl, Competitive Brawl, Historic, Pauper, Standard, Timeless Rulings (10/1/2012) If Izzet Keyrune becomes a creature in a way other than its own activated ability, its last ability will still work
In this deck you will find a lot of great staples in this deck directly out of the box that you can then use towards building your own hyper-powerful Amber/Amethyst deck list, or any Amethyst deck for that matter
Together they form a deep mid-tier chase pool rather than a single standout
Then discard a card unless you return a land you control to its owner's hand