new pot card yugioh RC04-AE057 of Desires (QCSR) – TCG Corner Pot of Avarice Ultimate Rare

Phantom Blade and Assimilation Aegis are the standouts here, providing repeatable removal that can take out your opponents biggest threats each turn, and can be easily searched for by the decks variety of Equipment tutors

Scyther 21.03, 20.63, 21.10, 20.70, 20.65, 21.13, 20.63, 20.65, 20.71, 20.74, 20.66, 21.04, 21.12

Creatures like Venser, Shaper Savant, and Hullbreaker Horror can easily serve as removal, all while providing a combat-ready body

The idea of card advantage is the entire premise that control decks are built on

In general, I would look at these two factors when looking to include cards not of your tribe's creature type: Is this creature so strong that it, on its own, is generally stronger than my tribal creatures when they are receiving bonuses and/or empowering my other cards