Here is an easy otk deck. Literally turn 1 otk.
You hard mulligan for Summer Flowerchild and you don’t want Alex or Carrier in your hand. You play summer, it draws Alex and Carrier, the only cards over six in your deck, and you play them for free… game over.
The rest of the cards in the deck don’t matter because you will never play them.
Here is a code for an example, but as long as you don’t have any other cards at six or more mana and you have Summer Flowerchild, Alex, and Carrier, the deck wins in one turn every time - even if your opponent starts at 40 health.
Brawl Deck
Class: Druid
Format: Wild
Summary
2x (0) Forbidden Fruit
2x (0) Innervate
2x (1) Arkonite Revelation
2x (1) Forest Seedlings
2x (1) Living Roots
2x (1) Malfurion’s Gift
2x (1) Raven Idol
2x (2) Bottomless Toy Chest
2x (2) Lifebinder’s Gift
2x (2) Wrath
2x (3) Pendant of Earth
2x (3) Swipe
2x (4) Caricature Artist
2x (5) Summer Flowerchild
1x (9) Alexstrasza
1x (12) Carrier
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To use this deck, copy it to your clipboard and create a new deck in Hearthstone
Edit: I said every time and that’s not 100% accurate. What I meant to say was every time you get Summer Flowerchild in your starting hand or draw it early you will win.