This makes Gix a rare commander that your opponents will likely want to keep in play rather than remove on sight, giving you plenty of time to build up the mana for his second ability
Storm decks are tricky to build and require a specific collection of cards to function, which is why they only exist in older formats like Legacy and Modern which have the necessary storm cards
Creeping Chill is also less useful against grindy midrange decks, though I would leave it in against control
the rest are cheap novelty items worth little more than the metal they are stamped on
Slashing Tiger may struggle to find a spot in competitive play due to its high cost and limited impact compared to other options available in Magic: the Gathering
Chandra, Fire of Kaladesh / Chandra, Roaring Flame Chandra, Fire of Kaladesh isn't actually that popular prior to this reprint, so I don't think we'll see any positive movement here