As a definition for a combo deck, I think the above is actually rather good
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
in just the past few years, weve gotten Sheoldred, the Apocalypse, Orcish Bowmasters, Razorkin Needlehead, and Scrawling Crawler to supplement the game plan
Since Pioneers inception, the Mono Green deck has been a player in multiple formsfrom the early builds that kept getting waves and waves of bans to the more recent builds which are much heavier on bigger spells like Karn, the Great Creator and Storm the Festival
But all the different abilities and effects which impact total cost are implemented differently in the rules, and not always in the way youd like The first kind of cost-related mechanic to consider are alternative costs