Thats the perfect ability to mass-trigger your landfall cards, which can mean tons of Scute Swarm tokens, lots of energy from Nissa, Worldsoul Speaker, and so much more
Recently, Wizards of the Coast released The Lord of the Rings: Tales of Middle-earth
If Centaur of Attention's enters-the-battlefield ability is copied or triggers multiple times somehow, it's possible to store more than five results on it
When Embercleave enters, attach it to target creature you control
Weak fixing leads to awkward decks, where only one or two players can get greedy and many players have two color decks with major color issues
Brawl is the same, though it is 60-card singleton with either a Standard or Historic legality in regular Brawl or Historic Brawl respectively, and Brawl is usually only a 1v1 format