Earthen Goo I mostly play Commander, and I cant really see why Id want cumulative upkeep cards in one of Magics slower formats overall
Skullclamp Skullclamp requires a stream of small creatures to pop off, but tokens have been part of Magic since its inception
Personally, to go all-in on the counter theme that this card presents, I would recommend trying Master Chef
Alternatively, if you're running short, you can play Edge of Autumn to search your library for a basic land and immediately play it tapped

Queen Brahne Rarity: Uncommon TYPE: Legendary Creature SUBTYPE: Human Noble CMC: 3 Mana cost: USD: $1.64 EUR: 1.59 TIX: 0.10 EDHREC RANK: 4667 (2/1) Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) Whenever Queen Brahne attacks, create a 0/1 black Wizard creature token with "Whenever you cast a noncreature spell, this token deals 1 damage to each opponent." Queen Brahne Rarity: Uncommon TYPE: Legendary Creature SUBTYPE: Human Noble CMC: 3 Mana cost: USD: $0.27 EUR: 0.12 TIX: 0.03 EDHREC RANK: 4667 (2/1) Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) Whenever Queen Brahne attacks, create a 0/1 black Wizard creature token with "Whenever you cast a noncreature spell, this token deals 1 damage to each opponent." Quina, Qu Gourmet Rarity: Uncommon TYPE: Legendary Creature SUBTYPE: Qu CMC: 3 Mana cost: USD: $2.44 EUR: 1.61 TIX: 0.15 EDHREC RANK: 6835 (2/3) If one or more tokens would be created under your control, those tokens plus a 1/1 green Frog creature token are created instead
