The green deck has some absolutely broken starts, so keeping a seven that doesnt have something powerful going on is unacceptable
There is also the potential for this card to shine even brighter in tandem with the right kinds and a number of battle cards
Sure, they might be able to put them back into a players hand from the battlefield or turn them into Islands, but mono-blue card effects just didnt let you search your deck for them, let alone place them on the battlefield
If Ty Lee, Chi Blocker ceases to be under your control before its ability resolves, you will still tap the targeted creature, but it will untap normally during its controller's next untap step
Abzan Devotee Banehound Blazing Hellhound Caustic Hound Defacing Duskmage Dreadhound Filthy Cur Ghost Hounds Hell Mongrel Hollow Dogs Hollowborn Barghest Hound of the Farbogs Interceptor, Shadow's Hound Kroxa and Kunoros Kunoros, Hound of Athreos Mortis Dogs Plague Dogs Rakdos Ragemutt Snarling Gorehound Thraben Foulbloods Underworld Cerberus Vampire Hounds