You do still have to pay the mana to cast the Vehicle or artifact creature you exile, but since there's no mana needed to be used for Sanwell's effect in the first place, you should have access to however much mana you need
Clackbridge Troll eventually creates awkward combat steps for the players you havent given Goats to
Skip to main content SIGN IN Shadows Over Innistrad Foil: Hound of the Farbogs Edition: Shadows Over Innistrad Type: Creature - Zombie Dog Cast: Rarity: C Collector #: 117 Pow/Tuf: 5/3 Delirium - Hound of the Farbogs has menace as long as there are four or more card types among cards in your graveyard
#6: Tishanas Tidebinder This merfolk is a 3/2 flash creature that functions as a three-mana ability-based counterspell
But even considering that, milling three and maybe getting one of them back depending on your hits is just a really weak payoff
Originally it had multiple versions, each with different flavor text, which means that some show up in automatically generated lists (like if you import your Moxfield list into TCGplayer) more than others
