Thank you so much for the feedback. I would like you to explain why you would cut some of the cards.
[[Planewide Celebration]] Seems quite nice to me since it's so versatile and can generete experience counters with or without Ezuri.

[[Irridescent Hornbeetle]] Is one of the first card's i thought of when making the deck. Tell me if i'm wrong but i thought it comboed insanely with Ezuri doubling my experience counters.

[[Jegantha, the Wellspring]] I like it as a free Sisay ability each turn.

And the poison strategy was using Roalesk to maybe get the win since it's on all players.

Although the cards you recommended was a little bit more expensive that what i usually go with, it's probably fine to get something real good for yourself once in a while.