Creating a combo of targeting the Challenger and then triggering its ability to find another pump spell can create a lot of damage fast, and this card might even slot into Pioneer decks if they have enough pieces to reasonably support it
While a few archetypes are being pushed, nothing is too extreme, and all the big cards are fun-focused first and foremost
Syvelun of Sea and Sky: One of a number of new merfolk cards in MH2 that work together well.
Ursula: Deceiver Of All, Kida: Protector Of Atlantis, and And Then Along Came Zeus are cards likely to impact competitive play
Mother of Runes (T1, Ext, S, Block) Talk about a single-target Glory, I present Mother of Runes
There are actually astonishingly few threats in the current Modern metagame which survive Unholy Heat, and a lot of play patterns are defined by the existence of this card