Three mana for a 3/3 and a 1/1 is awesome, and you can even buff the 3/3 (and other tokens)
Sagas and legendaries aside, there's a gazillion artifacts to make Jhoira click as one of Izzet's best competitive commanders, and one of Magic's best artifact commanders
A couple of Marnie SSH 169s, that cause a redraw between you and your opponent, will cost you about $1.44 each, sometimes fluctuating up to over $2
They opt to just kick these errors back to be safe
Kaiba Starter Deck (2002)
Spell The Grand Spellbook Tower Field Spell Once per turn, during your Standby Phase, if you have a Spellcaster-Type monster on your side of the field or in your Graveyard: You can place 1 "Spellbook" Spell Card from your Graveyard on the bottom of your Deck, except "The Grand Spellbook Tower", then draw 1 card