Well, that's what I *think* he means. If I'm wrong, that would mean there's more than 5 which could make it more into contention.
Here's the others:
Dragon Fangs
{1}{G}
Enchant Creature
Enchanted creature gets +1/+1 and has trample.
When a creature with converted mana cost 6 or more comes into play, you may return ~this~ from your graveyard to play enchanting that creature.
Dragon Scales
{1}{W}
Enchant Creature
Enchanted creature gets +1/+2 and attacking doesn't cause it to tap.
When a creature with converted mana cost 6 or more comes into play, you may return ~this~ from your graveyard to play enchanting that creature.
Dragon Breath
{1}{R}
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 comes into play, you may return ~this~ from your graveyard to play enchanting that creature.
Hmm.. can't find the blue one, unless it doesn't start with Dragon...