Magic: The Gathering has a huge range of strategic interactions and options in it - but generally, your deck needs to follow a single, coherent strategy to win games
A common conflict in Magic design is between flavor and complexity
City in a Bottle Rarity: Mythic Rare TYPE: Artifact SUBTYPE: - CMC: 2 Mana cost: USD: $374.07 EUR: 411.03 TIX: 0.00 EDHREC RANK: 29516 Whenever one or more other nontoken permanents with a name originally printed in the Arabian Nights expansion are on the battlefield, their controllers sacrifice them
The low mana cost of Shadowspear is what makes this card such a good answer: the equipment itself is just 1cmc and the ability -- which doesn't even need you to equip first to use -- is also 1 mana, making it super easy to tutor up and use it when combined with follow-up removal
Inspiring Overseer and Thopter Engineer are fine cards, but there are better options at three mana
Dragon's Rage Channeler is a 1/1 that allows you to surveil whenever you cast a noncreature spell