This gets around sacrifice (edict) effects and forces your opponent to trade removal inefficiently
That said, between ramps ubiquity in Commander, the fact that ramping one land for 2 mana has been good enough for many cards to see consistent play in the format for years, and the risk that Deep Gnome Terramancer will be a dead card is minimal at best, and Id call it a safe bet youll come out ahead far more often than not when playing this card
Both moves become more powerful when the user discards type-specific Energy cards, though while Landorus-EX can deal more damage with Strong Energy and is more adept at sniping bench Pokemon with Hammerhead, Genesect-EX has more freedom regarding how much damage it can do with Rapid Blaster and is a more capable team player with its Drive Change ability
This is very valuable in turning you into the beatdown and keeping pressure on your foes
Its attack, Mega Harmony , deals 40 base damage plus 30 more for each of your Benched Pokmon