I was judging a lot of events but I managed to sneak in one Grand Prix where I got my best ever finish, reaching Top 16 with a record of 12-2-1 playing Gruul Devotion
The deck then plays a number of powerful early- to midgame Merfolks with powerful abilities including Deeproot Elite which bolsters your army with +1/+1 counters, a huge number of Merfolk with anthem effects including Master of the Pearl Trident, Merfolk Sovereign, Mist Dancer, Vodalian Hexcatcher, Merfolk Mistbinder, as well as merfolk with powerful draw abilities such as Seafloor Oracle, and many many more
First Strike A creature with first strike deals combat damage before creatures without first strike
Which of Foundations most expensive cards are you looking forward to add to your collection
All of this is stapled onto a pretty good template: a very aggressive double strike-vigilance-haste combination that allows it to attack as well as being activated as soon as it hits the battlefield