Ruby/Sapphire decks normally have a good amount of removal (outright banishing characters) and ramp (adding extra ink in a turn)
Its a very neat way to mechanically marry a Final Fantasy players understanding of the series base magic system to a Magic players understanding of its own colors archetypes and escalatory effects
In addition to Peter, another low cost, high power card is Kit Cloudkicker Tough Guy (shown below in its promo form)
1 Zinnia, Valley's Voice The peacock of power, the flamingo of fabulousness, the bird bard of benevolence
Magic: The Gathering took things a step further by giving the card Sephiroth, Fabled Soldier, the ability to sacrifice one of your creatures for a benefit
Even though that's the case, Hydras bring something special and formidable to the table