Cards that apply their own effect to other cards can bypass the Egyptian Gods' inherent protection, like "Blast Held by a Tribute", which became a part of "Obelisk" after it was Summoned by Tributing "Zolga" chosen by the card
She's already pricey at five mana, and gaining a significant storm count even with a bunch of cantrips will make her effectively a seven or eight-mana card at least
Jace, the Perfected Mind Jace, the Perfected Mind is one of my favorite mill planeswalkers
Huatli, Dinosaur Knight, Allosaurus Shepherd, and Forerunner of the Empire are highly effective enablers of dinosaurs and help ensure they devastate your opponents
If the game's going long and you're running out of gas (or you're stuck with a mediocre opening hand with an Inspector and lands) then Clues fulfill their standard function: Sink your surplus mana into extra card draw
The drawback is that if the game is good enough, many people will choose to play online instead of buying cards