His conditional indestructibility has the potential to turn off kill cards from decks that dont have early drops or cant keep them on the table, and his recursive potential is unlocked by any deck that either a) plans to use Delve (Tasigur, Angler, Treasure Cruise, Dig Through Time) or b) plans to abuse Deathmist Raptor and Den Protector
Foundations appears to be the name Wizards is currently using for beginners products
Beyond all that, it's also just awesome to watch every enter the battlefield effect on your side of the table trigger simultaneously
There are two phases to the game against Mono-Red: dont die and kill them. Your goal is to sideboard into all threats that are good at starting off as dont die and rapidly turn into kill them. Planeswalkers dont do that, and Jadelight Ranger usually just gets sent packing by Abrade or Ahn-Crop Crasher
How To Set Up Illumineers Quest: Deep Trouble In the Illumineers Quest: Deep Trouble box, youll find everything you need to play straight away, including: A paper playmat to track Ursulas actions
Five mana is a bit much to pay, but the potential to get both modes on this lieutenant card is a very real advantage