There are far better commanders for five-color goodstuff decks, so the focus should be on reaching that unique "everypony wins " result
Couple that with a giga-anthem for inevitability, or at least extra value in the late game, and I could see slipping a few extra high-toughness creatures in my deck to maximize this cards potential
Of course you can, we list the sets with Charizards in them for you: Crown Zenith Brilliant Stars Pokemon GO Lost Origin Celebrations Shining Fates Vivid Voltage Champions Path Darkness Ablaze What do we think of Charizard GX cards
Only a kraken or leviathan could sell itself as a land, before revealing itself as a creature
Crackling Doom Crackling Doom is one of the best bang-for-your-buck 3-color instants, especially in multiplayer games
Green Sun's Zenith was once banned in Modern for much the same reason that Birthing Pod is