This is a possible Bant commander for one of Twenty-Toed Toads alternate win conditions, probably the one tied to its counters rather than the cards in your hand
The problem is that a 2/2 (even a 2/2 with flying) can be outclassed fairly quickly, so delaying Vexing Gull trades its early game relevance (pecking in for damage) for mid-game value (when you might be behind in the race or not be able to attack with Vexing Gull)
It's expensive, but the fail case here is 7 mana for 4 2/2 tokens, and you're likely to put counters on a bunch of other stuff too
I also tossed in a few enchantment-triggers like Eidolon of Blossoms and Thoughtrender Lamia
One discarded card turns into two exiled cards, giving you twice as many things to do with your resources
The rarest of those three random cards to appear, according to auction house PWCC, was the full-art Lillie illustrated by Naoki Saito - making it the most difficult Extra Battle Day card to obtain