Decoy Gambit isnt amazing on its own, but when you start having multiple copies of it on the stack it could result in either some serious card draw or a fixed Cyclonic Rift
More importantly, for just 1 mana, it seems like a scam
24 Command Bridge Its kind of annoying that hybrid lands always enter tapped and only offer two different kinds of mana
That will make Kitt a 5/5 trampler, and is in the color of haste in red, so you can drop her, make two 1/s with a token doubler, have haste with something like Fires of Yavimaya, tap the tokens to pump her to a 5/5, and smash for 5 Commander Damage out of nowhere
Then, you could cast them for the mana cost straight from the sideboard
In the mid to late game, opponents will try to remove your creature, so wait until you have a Blossoming Defense or similar card in hand to get blowout card advantage