There are about a million 2/1s for two mana with some sort of upside that are playable, not just in Standard but in Modern as well, which means Naban, Dean of Iterationwhile restrictive in another way (only working with Wizards)is much easier to build around than Panharmonicon
Even so, given the Pokmon and the popularity of the far harder-to-pull other versions, this is selling for significantly more than other much rarer cards
Cavern-Hoard Dragon is the first that comes to mind, and it also allows you to cast it for way cheaper if one of your opponents has too many artifacts
Like many elves from Magic: The Gathering , who are associated with Green, the Kokiri are tree dwelling creatures with strong connection to nature
Two mana to give a Human lifelink is also going to put in a lot of work against aggressive red decks, making it relatively difficult for your opponent to win the race
Any power- or toughness-setting effects that start to apply afterward will overwrite this effect