9 Teferi, Mage of Zhalfir Teferi, Mage of Zhalfir is one creature in a long line of powerful Teferi cards
However, the best general tutors are very expensive: cards like Vampiric Tutor, Demonic Tutor, Finale of Devastation, all these are in the double digits
Typically, aggressive decks consist of approximately 6 to 9 creatures costing less than 3 mana, 5 to 10 creatures falling between 3 and 4 mana, and only 2 to 3 cards with a mana cost exceeding 4
This question is extremely relevant now that Treasure tokens are everywhere because they can be considered for affinity and the mana they produce
Overall Zimone does a lot of different things, and she does them very well