Green ramp usually doesn't fall massively behind on the board however, instead it is typically struggling with one annoying thing it can't easily deal with
This changed with the release of MH2, and once delirium is enabled, Unholy Heat is the most efficient answer to many threats in the whole format, impressively being able to remove even cards like Primeval Titan or Teferi, Time Raveler for a single mana
For reference from above: Pull from Eternity, and Riftsweeper
Despite this, there are some choice value cards available in each of the Final Fantasy EDH decks
If Thancred Waters leaves the battlefield or you lose control of it before its triggered ability resolves, the target legendary permanent won't gain indestructible at all
You dont need combos to win with lifegain the incremental drain plan closes games on its own but knowing they exist shapes your deckbuilding and your threat assessment at the table