So its fair to say that, with the expanded audience that MTG now has, the prospect of another Modern Horizons set, which brings back long out of print cards with fancy new art and treatments, as well as plenty of new ones, is a very exciting one indeed
A creature that rewards players for attacking with non-humans could be a risk in a set with no human creatures
That does make it a jack of all trades, master of none, but once you get those +1/+1 counters flying on your cards, you wont mind one bit
You may play the exiled card this turn
And with enough counters, the creature gets new stats and abilities, noted in those little "LEVEL 3-7", "LEVEL 8+" boxes on the card ( in the case of Hexdrinker, with the top end granting you the legendary Progenitus effect of Protection from Everything