These spells are typically stronger than the instant speed green card draw spells previously mentioned
Gastal Thrillroller I respect Gastal Thrillroller as a strong aggressive play that hits hard and comes back later for more
I've also focused on cheap protection for Cloud like Loran's Escape, and something that nobody really talks about is Green's "draw cards equal to power" which is bananas here like Hunter's Insight which is easily a 3 mana draw 7+, I find it kinda silly that all the precon guides are focusing on more expensive and less efficient draw options like Sram, Senior Edificer or even Sword of Fire and Ice when you can just out-value all of that with cards that are less than a dollar
The fact that you can force your opponents to block it and then get an additional combat may work itself out to be a great removal strategy
Running a pair of Partner Commanders, like Tymna and Thrasios, gives you double the triggers
Eye of Nidhogg is great for keeping opponents life totals go down, and really helps Yshtola in this build as it triggers both of her abilities