Considering all physical variations, including foils, the total exceeds 100,000 collectible cards
Blue also offers card advantage and makes for an interesting deck but with few cards to offer at all blue is never more than a splash
Sylvan Safekeeper You need some synergies to want Sylvan Safekeeper, but it shines in decks that want lands in the graveyard
Since you have to cast something to trigger heroic, this should leave your hand card-neutral
That means at higher rarities: Cloud, Midgar Mercenary Gilgamesh, Master-at-Arms Firion, Wild Rose Warrior (free 1/1s with job select) Freya Crescent Giott, King of the Dwarves Adelbert Steiner Zidane, Tantalus Thief is also an exceptional card, even without any direct synergy
You dont even have to go infinite, but it sure helps