At a glance, Show of Confidence doesn't look that exciting, just putting a +1/+1 counter on a creature for two mana, but it's actually much, much better since it essentially has magecraft storm, copying itself for each instant or sorcery we've cast during the turn
You dont need to take every legendary card you see, either, meaning you can dig through the top of your library for that Piru, the Volatile, make the rest into Treasure tokens, and ramp into dropping your huge dragon way early
Clara Number 70 Language English Legal Formats Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pioneer, Timeless, Vintage Not Legal Formats Alchemy, Pauper, Standard Rulings (8/7/2020) You lose 2 life even if the target player has no nonland cards in their hand to discard.
When an instant or sorcery card is exiled by Arcane Bombardment, it says specifically that you "copy each card exiled with Arcane Bombardment"
As long as an exiled creature card with a blood counter on it has flying, Rayami has flying