Teysa of the Ghost Council

When Teysa of the Ghost Council enters the battlefield create Y amount of black and white 1/1 spirit tokens with flying where Y is the Number of experience counters you have you get a experience counter.

Spirits you control get +X/+0 where X is
Is the Number of experience counters you have.

At the beginning of your end step you may exile Teysa if you do at the beginning of your next upkeep return Teysa to the battlefield under your control it gains haste until the end of the turn.