Or if you werent being budget-friendly, which direction would you take this
Creature - Cleric Spirit Color tag templates(None) Stax (CTRL to add secondary) Tutor Qty: 2 Price: 18.85 Idyllic Tutor Search your library for an enchantment card, reveal it, put it into your hand, then shuffle
Always keep this card in mulligans
This was my sideboard plan against Merfolk for the StarCityGames IQ: In: 4 Huntmaster of the Fells 2 Ancient Grudge 2 Destructive Revelry 1 Vapor Snag 1 Simic Charm 1 Dismember Out: 4 Thought Scour 3 Mana Leak 2 Stubborn Denial 2 Curiosity With a combined total of just 18 threats in the 75, "going Aggro" against Merfolk isn't as viable an option as going Midrange
It's slightly bothersome that the power and toughness box is on the left side of the card, but it's visible and fits the geometry of the art well enough.
Look for cards that can repeatedly untap themselves and/or sacrifice things for free like Blasting Station and Ashnod's Altar to establish combos, since free or close to free is important for many loops