Then at sorcery speed you can spend one Phyrexian mana to make a dork you control both Blue and artifact, so you can make that Silver Myr now draw and discard when it taps for mana, or that Stalker is now a 2/2 base with boosts
All three cards are great for flipping, not so much for casting
You pay one mana and tap it to store that color as a charge counterthen later, you can tap it again to cash in that counter for the exact same type of mana
Light Up the Stage FINAL FANTASY: Through the Ages, Uncommon Limited: 2.0 The more aggressive your deck is, the better A Promise Fulfilled (Light Up the Stage) becomes
Copying loyal abilities can be powerful
Then if you're the monarch, double the number of +1/+1 counters on each creature you control