mtg land hate cards Mirage - Commander 2019 My Top 10 Graveyard Hate

Then in your upkeep, for free, you can Raise Dead and return a Goblin card in your hand, so it's free recursion in your hand each turn, but not mana free to the battlefield

But for that, you can also destroy lands, and who doesnt love land destruction

Damage dealt to creatures by a source with wither in the form of -1/-1 counters

If you are looking to benefit off of challenging, just play Queen of Hearts - Sensing Weakness

Vazi and Mari are at least more cohesive, with the former being a perfect Pillowfort commander and the latter supporting not one, not two, but three obscure types (not to be confused with Obscura)