Another problem was not having an enchantment, aura or equipment card in hand or as the top card of the library that fits the current situation
Card Name Type Creature Eldrazi Homunculus Rarity Uncommon rules Text Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) Instant and sorcery spells you cast cost less to cast
Why its a contender: An extra turn for only two mana is an incredibly powerful effect that often translates directly into a win
Cards that destroy enchantments like Reclamation Sage, or even cards that remove permanents like Anguished Unmaking work
Kindred Dominance is the typal payoff here, a one-sided wrath that leaves your villains standing while everyone elses board hits the bin
Augment can (and usually does) change the name, card types, subtypes, rules text, and power/toughness