You can't know what decks will end up at the top of the metagame, but it's for certain that the overwhelming majority of them will be using dual lands
Although its a fan-favorite tribe, Merfolk hasnt really seen much play since the first couple of weeks that Rivals of Ixalan was legal, and thats predominantly due to the fact that it was always one or two cards short of being a full deck of Constructed-playable cards
In a homebrew deck for Low or Mid sure, have at it
I love it on Commanders with indestructible that won't get destroyed and remain out on the battlefield post Wrath, with the Slayer of Worlds still on it for future turns like Anara, Wolvid Familiar or a God
Another card that caught my attention is Benalish Partisan
The creature tokens were given lifelink because, at the time, we had a bunch of 1/1 white Zombie tokens in the file (along with 2/2 black Zombies with wither)