On a more serious note, the card may not be for you, but making a lot of flying bodies and growing them on each attack is powerful
Hear me out: I know the power level of this card is undeniably high, but not producing mana is a massive cost at a four-player table
Additionally, the Leader's effect does not have a [Once Per Turn] restriction
Gold is superior to Treasure, because Gold does not need to be tapped when you sacrifice it for mana
Honorable Mention #1 (#13 Overall) - Biophagus This two-drop 1/3 can tap for any color of mana to use for anything, so it's already better than the smaller and defender Sylvan Caryatid
Izzet is already causing problems in Standard and Modern, and having a way to shut down any interaction for the low, low cost of two mana is wild