All of this player's giants gain 4 levels. Allies of icon level +4 or less cannot be played against this player's giants.
Copyrights:
TSR
Wizards of the Coast
Giants have been a theme that has needed a dungeon, however, this dungeon isn't worth it, even for an all giant deck. It gives all your giants +4 levels, but since to be truly significant the bonus usually needs to be +5, all this does is give the opponent the chance to play their cards into battle first, which can sometimes be all that is needed. Therefore, this bonus of levels does not make it worth playing.
The second part of the power restricts allies of +4 or less from being played. While this does protect this player from some annoying allies (like Intellect Devourer (86/3rd), Loup-garou (79/RL), and Noble Djinni (84/3rd)), the most potent allies still can target you (like The Dreaded Ghost (246/4th) or the Master Illithid (53/DU)).
While this dungeon gives a giant deck a few perks, Level Playing Field (51/IQ), Song of the Dragonlance (22/DU), or even Mausoleum of the Zombie Master are all better than this dungeon in most games except for the purest of fun settings.
