Celebi is also mentioned in the text, so is presumably the other Mythical EX for the set
A Rampant Growth cast on turn 2 or 3 means we can cast The Gitrog Monster on turn 4 instead of 5, assuming we hit our first 4 land drops (don't skimp on lands!)
The best one is Revendread Origins , due to the protection it provides, but also because it is the most flexible
Bug reproduction steps Create a private room with available DL parameter: Card Pool: All Banlist: Unlimited Master Rule: 5 Duel Rule: Speed Duel LP: 4000 Time Limit: 180 Draw Count: 1 Starting Hand: 4 Shuffle: Yes Beta: No Leave anything else at default, make it private, and pick a deck
What It Is : All cards from Black & White (2011) to current
Commander Gyruda, Doom of Depths Companion Your starting deck contains only cards with even mana values