Sea Dragoons of Draconia Normal Pendulum support, but it also serves as a Level 3 high-scale to send with Advanced Ritual Art
It's a desert that enter tapped (booo!), taps for any color of mana a land you control could produce, and by paying 3 mana, it becomes an X/X Plant creature with reach until end of turn, where X is the highest mana value among your Commanders
Illustrated by Rebecca Guay Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Banned Modern Not Legal Brawl Banned Legacy Banned Comp
I won every game I played on Turn 1 the entire day (meaning, they died in their upkeep), except for the game where Magnus Twiddled both of my Vises
The kicker is to use a card like Loyal Retainers to fish Gerrard out of the yard before his ability resolves
It even has an Eldrazified text box