Each of the six SARs in Inferno X boasts something distinct and eye-catching about its artwork, but Charizard's incredible attention to detail
It locks out spells during combat, and it lets you cash in damage post-combat for colorless mana when it flips into Megatron, Destructive Force, a vehicle that throws artifacts at enemy creatures, which is a nice twist for aristocrats decks
Plus, you get card draw equal to however many creatures deal combat damage that turn
And because of its quirky static ability, it can be you commander, and interacts with cards that don't normally interact with planeswalkers (think: Green Sun's Zenith)
You need to have a rough idea of all of these things if you're going to get started on a new brew (not a cup of tea, but brewing a deck idea)