Free-for-All is just a card that flips every other monster down and slowly summons them into the battlefield, while I'm Rubber, You're Glue forces the user to speak only in rhyming sentences
There are many cards that use convoke, with most being found in green and white, and have very large mana costs that encourage convoking
There is synergy, but evoking the feeling of Zelda was the priority.
The fact that it also summons two more bodies with 4/4 in power on attack means this is a must-remove threat on sight
This gives you more options, in case you want to play Thanos now, but save the boardwipe for later
Here are my options: Ash Barrens Canyon Slough Bloodstained Mire Temple of Malice Myriad Landscape Forgotten Cave Desert of the Glorified Smoldering Crater Polluted Mire Phyrexian Tower Agadeem's Awakening Spikefield Hazard Step 4: Put It All Together Now that you have all your potential cards picked out you need to start assembling your deck