It seems that even if you play it, the state is such that 'the opponent can perform an additional exhaustion.' It is already known, and there are players who are actively exploiting this bug when it is played, so I strongly recommend not using it while the bug persists
Since card advantage and attrition are vital components of winning control decks and strategies, board wipes, or spells that remove all of a certain type of permanent from the battlefield (usually creatures) are great ways to break parity, remove a lot of opposing resources, and address a lot of potential threats at once
If its your first time enjoying a visit to Tarkir, then the names of the clans will perhaps be familiar
While Saskia lacks any specific Human kindred synergies, its color access and aggressive nature make it a solid choice for the tribe
If the target creature is an illegal target by the time Oko's second ability tries to resolve, the ability won't resolve
Chatterfang, Squirrel General is an excellent Tokens-focused commander with an incredible ability that says, If one or more tokens would be created under your control, those tokens plus that many 1/1 green Squirrel creature tokens are created instead. Having Insidious Roots and Chatterfang, Squirrel General on your battlefield can lead to some mind-blowing turns thanks to token creature synergies