The other two commanders are great but would require way more card swaps to be worth changing to
Peace Offering's secondary theme is +1/+1 counters , which is fine as a deck but not consistent enough as a win strategy once another player realizes that your Forgotten Ancient or Steelburr Champion are getting out of control
In no particular order, these weaknesses are: Path to the Peak Mew VMAX is only as strong as your bench, and that means you need plenty of Genesect in play to keep drawing the cards you need
If you really want to bling out your Tifa-centric or Landfall Commander deck, there is an ultra-premium Tifa Lockhart available
A card like this doesnt have the same downside with the mechanics retirement, but normal mana timing restrictions still happen
That ability lets you pick once from four different effects: tapping or untapping a permanent, dealing 3 damage to each opponent, copying an instant or sorcery, or (presumably your last choice) putting Gandalf back on top of your deck