It seems silly to have to convince people that the newest iteration of Attune with Aether and Traverse the Ulvenwald is playable, but here goes Imagine that Flower is effectively a Selesnya Guildgate
The fact that the second card is so loosely restricted, and Force is so universal (and technically hard-castable) makes it playable in any fair blue deck, and so gives a large portion of the format the necessary panic button to discourage super-aggressive combo
Payoffs Bonny Pall, Clearcutter, Oko, the Ringleader, and Make Your Own Luck are three of the best reasons to be GU
But Flare of Duplication will give burn and prowess a chance to Lightning Bolt the dome after combat and sac a Monastery Swiftspear to copy the instant for no mana
Ill use myself as an example as I go through this, both because I know myself best and also because Im currently going through this
Patchwork Banner is one of the best cards for Tribal builds as it combines ramp and Tribal support