An ability that triggers when a creature becomes monstrous won't trigger if that creature isn't on the battlefield when its monstrosity ability resolves
Some split cards such as Who // What // When // Where // Why are part of the un-sets, and so aren't legal to play in most formats
Raw Unlimited copies in Near-Mint condition fetch around $39$41 on TCGplayer
Watermark: Desparked Illustrated by Kai Carpenter Standard Legal Alchemy Legal Pioneer Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp
Rampant Growth, Cultivate, Grow from the Ashes, Explosive Vegetation, Growth Spiral, and Explore ensure smooth five-color access
Rather than trot out another Brigid list for today's column, I decided I'd try building around a notorious legend that dates all the way back to the early days of Commander