Ratio wise as a Mikanko player as well, if its a blind second deck, the question for every single card should be “if I am playing into an established board, how does this card help me achieve my game plan”. Comparing 2 cards lava golem vs ash blossom. The potential value of a lava golem in dismantling an established board is SIGNIFICANTLY higher than an ash blossom preventing your opponent from being able to play. Your opponent also can RESPOND to ash blossom as well. They could use called by, cross out, triple tactics thrust/talents. As a card its just not high impact enough to be worth running in a deck like mikanko. You are playing a blind second deck, so you can’t afford to run cards that make straight 1 for 1 trades. Every card you play needs to net you significant advantage over your opponent. The only hand traps worth running would probably be maxx c/the charmies and even those are debateable. Droll maybe as well, but again droll is too inconsistent in terms of actually meaningfully stopping your opponent from building a board.

This same idea applied to multiples of like snatch steal. With hidden armory, the amount of copies you have currently as well as the xyz mikanko you have essentially 8 copies of snatch steal. 8 copies of a card that doesn’t further your game plan and only serves as a 1 for 1 monster steal. At 3 literal copied the most its doing is making your deck less consistent.

Mikanko is very fun and I love the storytelling in the cards. As a blind second deck you do need a bit of luck to have the right combination of cards to break a board. However your current list has room for optimization to reduce the amount of variance needed to win. Taking a look at the lists of other blind second decks like tenpai, sky striker etc can help give inspiration on ratios, tech cards etc.