The List

Dragon Breath

Enchant creature
Enchanted creature has haste.
{R}: Enchanted creature gets +1/+0 until end of turn.
When a creature with mana value 6 or greater enters, you may return Dragon Breath from your graveyard to the battlefield attached to that creature.

Battlebond

Enchant creature
Enchanted creature has haste.
{R}: Enchanted creature gets +1/+0 until end of turn.
When a creature with converted mana cost 6 or greater enters the battlefield, you may return Dragon Breath from your graveyard to the battlefield attached to that creature.

Archenemy

Enchant creature
Enchanted creature has haste.
{R}: Enchanted creature gets +1/+0 until end of turn.
When a creature with converted mana cost 6 or more enters the battlefield, you may return Dragon Breath from your graveyard to the battlefield attached to that creature.

Scourge

Enchanted creature has haste.
oo
R Enchanted creature gets +1/+0 until end of turn.
When a creature with converted mana cost 6 or more comes into play, you may return Dragon Breath from your graveyard to play enchanting that creature.