Teferi, Hero of Dominaria will always be a force in competitive play, even seeing some action in Azorius Miracles in Legacy
Being able to completely destroy a planeswalker is a powerful ability, but more often than not wont be relevant in a game
You can pull off those counters for three cards, and if you managed to give it another counter, then you can keep it around (although I think it's better when you kill it)
(Choose any number of permanents and/or players, then give each another counter of each kind already there
However, the true power of this card comes in the form of its ability that triggers when it enters the battlefield
Jeskai Striker The reveal of Jeskai Striker reveals a lot of information about what we can expect with the other four Tarkir: Dragonstorm Commander precons