I think this deck is hard to get working and still seems pretty underpowered, but Ich-Tekik is green so you can play a lot of ramp and Colossuses and see what happens
Best Red/Blue Commons in Wilds of Eldraine limited : Frantic Firebolt, Torch the Tower, Aquatic Alchemist, Misleading Motes, Cut In The best commons for this deck are various forms of interaction, mostly creature removal but you are looking at all of it
Summoning sickness prevents the creature from tapping or being declared as an attacker on the turn it comes under your control (absent haste), while detain prevents a creature from attacking, blocking, or activating its abilities
Card Set(s) -The Three Brothers-[ST13] CARD VIEW ST13-009 | C | CHARACTER Shanks Attribute Slash Block icon 2 Type The Four Emperors/Red-Haired Pirates Effect [On Play] You may turn 1 of your face-up Life cards face-down: If your opponent has 7 or more cards in their hand, trash up to 1 card from the top of your opponent's Life cards
And as always, let me know your thoughts