Mid-power Flying Tribal!

Gameplan:

This deck completely ignores Linvala's first ability, she is basically used as a better, repeatable Selfless Spirit to protect all your fliers.
Because of this, don't rush into casting Linvala early, build up a board of around 3-4 creatures, and only when people are thinking you might be a threat do you need to start protecting yourself. Play your more impactful creatures first.
The plan after that boils down to playing out all your creatures, draw into more, protect them with Jubilant Skybonder, Kira, Great Glass-Spinner etc. and slowly chip down our opponents.

The best boardstate you can get to usually involves Gift of Immortality on Linvala, this makes it so our opponents will need to have two bits of removal in one turn to get rid of Linvala, and even after that, the rest of our creatures will be indestructible and hexproof for that turn.
Your main win path is inevitability, with light stax like Reidane, God of the Worthy and Windborn Muse, control elements like Lofty Denial and recursion like Angelic Renewal, you can make yourself incredibly hard to interact with, while getting in damage with your evasive creatures.

Card draw is very important, Coastal Piracy type effects are game winning on their own, drawing 4-5 cards a turn means you'll almost always have answers and can keep moving forward with your gameplan.

Winning:

Medomai the Ageless will often be enough to close out the game, extra turns, allowing us to attack twice and keep getting incremental value. A faster path to winning is True Conviction, often even one attack with this out will gain us enough life to be untouchable and take out a player.
Another, less ideal, way to win, is to sacrifice Linvala and boardwipe yourself, clearing the way for your indestructible attackers.