If your opponent adds a card to their hand outside of their Draw Phase, you can discard Droll and Lock Bird from your hand and prevent them from doing it again
I quickly decided I wanted to build a mono-green Choose a Background Commander deck with Wilson, Refined Grizzly paired with Raised by Giants, and Ive gone down a rabbit hole where I want just about all the cares about your commander being on the battlefield cards you can put in the 98 of a mono-green deck
This Bloomburrow Bundle contains 9 Bloomburrow Play Boosters, plus 1 Traditional Foil card with Bundle-exclusive alternate-art, 15 Traditional Foil Full-Art Basic Land cards (including 5 foil Full-Art Lands), 15 nonfoil Full-Art Basic Land cards, 1 oversized Spindown life counter, 1 card storage box, and 2 reference cards
You can only use each effect of "Triggering Wurm" once per turn
So there is a lot for players who want to go tribal in Commander or constructed formats
a Reversible Dragonlord Kolaghan