Since he essentially gains +3/+3 each time he takes damage, and gives you three rad counters at the same time, any repeatable ping effect can grow Strong to obscene proportions and Mill your entire deck, opening the doors for a Thassas Oracle win the next turn
Despite being a bit tricky to get Shedinja into play, this attack can be an excellent counter against any threat
Stolen-Fire Stole 2R Artifact Equipment :rare: To Arms
Gold serves as the primary free-to-play currency
Another part it could play is in an Izzet deck based around snow, where its a snow sorcery, of course, but there are also plenty of attractive main-phase plays such a deck might be interested in, whether using stuff like Frost Augur and Ascendant Spirit or merely just using a Mazemind Tome
Theres also the Knight Paladin, which does have trample