First I had a copy of Barrin, Tolarian Archmage in my Cube
P/T Number 153 Language English Legal Formats Commander, Legacy, Modern, Vintage Not Legal Formats Alchemy, Brawl, Competitive Brawl, Historic, Pauper, Pioneer, Standard, Timeless Rulings (3/19/2021) The ability that defines Tarmogoyf's power and toughness works in all zones, not just the battlefield
If you do manage to defeat the Battle, you get a three-power Creature that gives your non-Creature spells Convoke, which in conjunction with the Kraken tokens is a great ability if your deck is built around it
Any choices made for the original spell or effects affecting the original spell aren't carried over to the new one
A mana base of gates has nothing on a mana base of fetches and shocks
I've considered Gutterbones as he requires one less mana but requires I do damage to the opponent and can only bring him back on my turn