Your opponents can just kill Rubinia to get their creature back and, as a creature itself, it's more vulnerable than enchantment-based Mind Control effects
If you don't already own fetchlands, Jace, Vryn's Prodigy, and Gideon, Ally of Zendikar, you either have to invest in $500 worth of cards, many of which will rotate in less than six months, or not play a tier one deck
Before you ask, no, I dont play Modern or Legacy
R: Shivan Dragon gets +1/+0 until end of turn
Subtlety banned in Brawl
Ross, Hapless Attach Falcon and Redwing Hatut Zeraze Strike Force Hercules, Olympian Hero Heroic Return Heroic Sacrifice Invisible Force Field King Solomon's Frogs Methods of the Mighty Midnight Angel Armor Queen Mother Ramonda Royal Talon Fighter Jet The Spear of Bashenga Ultimate Nullification Winter Soldier, Reborn Avenger Council of Reeds Extract Power Fantastic Elasticity Glorious Purpose Helmut Zemo, Mastermind Iron Man, Armored Avenger Jarvis, Earth's Mightiest Butler Kang Dynasty Lockjaw, Slobbering Teleporter Professor Hulk Valeria Richards, Precocious The Wasp, Winsome Avenger West Coast Expansion Age of Ultron Damocles Base, Sword of Kang Endless Ranks of HYDRA The Frightful Four Iron Monger, Sadistic Tycoon Klaw, Master of Sound Abomination, World Ravager Alicia Masters, Skilled Sculptor Batroc the Leaper Firebird, Blazing Ranger Flame On
