It's a mini-Elspeth, Sun's Champion! Well, that's not really accurate. It's a "one-shot-sort-of-like-Elspeth-but-makes-one-more-creature". For a 6-cost spell, it's not that great. Recently, in the realm of tolen-maker spells, it's been outclassed by Goblin Rally, since it makes 4 creatures for 5 and they're a relevant creature type (these tokens are still "Citizen" type). In white, this is outclassed by Captain's Call (3 for 4), Conqueror's Pledge (6 for 5 or 12 for 11), Even the Odds (3 for 3 with limitations), Increasing Devotion (5 for 5 or 10 for 9), Nomad's Assembly (a lot for 6), Raise the Alarm (2 for 2), and Spectral Procession (3 for 3). It is a bad card? Not really. Is it the best token spell? Far from it. I can see this finding a home in a mono-white token EDH. Outside of that, there are better options for white tokens.
Pros: 4 creatures
Cons: Irrelevant creature type, 1.5 mana per creature