Bant Panorama must be sacrificed to activate its color balance ability
This task delights me in real life, as I sit in the center of a huge fan of colours and gorgeous artwork, neatly sorting decks into piles, hyper-optimising for a particular mechanic before I get to try them out in a game
: Add one mana of any type that a Gate you control could produce
The back face's characteristics matter only if the card is on the battlefield and its back face is showing
For example, the siege subtype lets you basically assign it to an opponent to protect, then everyone else can attack it and it transforms into the backside when it's defeated
In an Arixmethes, Slumbering Isle deck, a ramp spell that you can cast on turns 1-2 would mean you can cast your commander on turn 3, making 1-2cmc ramp is far more valuable than 3+cmc ramp