The obvious choice is Marrow-Gnawer, the legendary Rat Rogue from Kamigawa block
While there are some effects that can be broken with blitzing, they are still kind of one-and-done, and can even miss, hitting a mana dork or similar in the case of Ojer Kaslem and Evercoat Ursine
Graded Population Report: Seel [1999-2000] #41 Visualize the distrbution of grades in the chart
The included Commander decks are optimized for the Commander/EDH format and offer a strong mix of gameplay depth and flavor, with four-color (White/Blue/Black/Red) strategies and alternative versions of well-known Magic characters
Unsurprisingly, the spellbook for Ishkanah, Broodmother is full of spiders
Alright, let's move on to upgrading the deck with Sam & Frodo as our commanders