This commander asks you to sink a huge amount of mana and life to build up an army of vampire tokens, which isnt terrible, but honestly
The Wombat is a gimmick, of course
Even better, Vial Smasher has partner, meaning you can bring in another creature to your deck, giving you access to more colors to play a wider variety of Goblin creatures and more impactful spells
We also have to lean more into blue for card draw, and white for recursionSevinnes Reclamation is a good start
Avacyn, Guardian Angel can even help raise your white devotion count to get the most out of cards that need devotion like Heliod, Sun-Crowned
I wouldnt recommend playing Tithe in any deck playing green, as it doesnt put any lands youre searching for into play, but ensuring you can start with 2-3 lands and an extra color or 2 of mana earns it a slot in many decks