Cards to expand the meta

What cards should be added to challenge S tier decks like Energy, Omnitell and UB Tempo.

Eldrazi Temple, Eye Of Ugin to allow another creature based deck.

Urzas Saga, Mox Opal for Affinity, might be too weak still.

Force Of Negation (FoW and daze will help degenerate decks or make UB Tempo broken)

Is there anything that can be added to improve green decks what else would you like to see?