Thriving Heath

Thriving Heath enters tapped. As it enters, choose a color other than white.
{T}: Add {W} or one mana of the chosen color.

Affa Guard Hound

Flash (You may cast this spell any time you could cast an instant.)
When Affa Guard Hound enters, target creature gets +0/+3 until end of turn.

Alpine Watchdog

Vigilance (Attacking doesn't cause this creature to tap.)

Pack Leader

Other Dogs you control get +1/+1.
Whenever Pack Leader attacks, prevent all combat damage that would be dealt this turn to Dogs you control.

Trusty Retriever

When Trusty Retriever enters, choose one —
• Put a +1/+1 counter on Trusty Retriever.
• Return target artifact or enchantment card from your graveyard to your hand.

Release the Dogs

Create four 1/1 white Dog creature tokens.

Plains

Secure the Scene

Exile target nonland permanent. Its controller creates a 1/1 white Soldier creature token.

Dauntless Onslaught

Up to two target creatures each get +2/+2 until end of turn.

Pacifism

Enchant creature
Enchanted creature can't attack or block.

Selfless Savior

Sacrifice Selfless Savior: Another target creature you control gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

Supply Runners

When Supply Runners enters, put a +1/+1 counter on each other creature you control.

Isamaru, Hound of Konda

Rambunctious Mutt

When Rambunctious Mutt enters, destroy target artifact or enchantment an opponent controls.