I do not recommend running RIP (the kind of hate card Living End doesn't much care about, even) in a Goyf + Deathrite deck. Relic of Progenitus is far better vs. LE but runs into the same nonbo problems.
Elspeth Tirel? Uhhhhhhhh...
5 LD spells is way too many and Zoo should eat Tron decks alive anyway (though your build is rich in Pyroclasm targets). I think 3 Molten Rain is more than good enough. Maybe run Surgical as your GY hate, I hear those cards go well together vs. Tron
I'm having nightmares about you drawing Rest for the Weary and not hitting landfall, Heroes' Reunion is another option. I think just more Finks and maybe
Rhox War Monk are best
I would not choose to run a basic Mountain since in the event of getting Mooned you'll have plenty of those