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Skill Drain is a worse, and riskier, monarchs erupt 5

Ancient Gear Reactor Dragon can chain into other copies of itself, quickly flooding the board with powerful Monsters you can use for Extra Deck plays

In previous control decks, they would use powerful Support cards to search for whatever they needed, and end their turns without attacking

Queen Butterfly Danaus X WIND Level 8 [ Insect / Effect ] ATK 2800 DEF 1900 If you control this Normal Summoned/Set card (Quick Effect): You can target up to 3 Level 4 or lower Insect monsters in your GY

Masked HEROs could also get new members with other levels for more efficient Transformation Summoning through other HERO monsters