A free, instant-speed way to remove your opponents graveyard is incredible, especially since so many broken strategies begin in the graveyard
I usually either bounce it with Tolarian Geyser, block with it, or sacrifice it and get it back with Urborg Repossession, but there are a lot of other cards that also let you do that
Kid Loki The 1-drops that grow really do need to be dealt with early
Pokemon that are Fairy-type in the video games will still exist in the TCG, but they will now be represented as Psychic-type instead
And theres Swarmyard MassacreSwarmyard Massacre, a five-mana sorcery that gives us two Squirrel tokens and then gives all creatures that arent Squirrels, Rats, Insects, and Spiders -1/-1 for each Squirrel, Rat, Insect, and Spider we control