Inspire X

Create X Inspiration tokens. They’re colorless enchantments with “Sacrifice this enchantment: Target creature you control gains +1/+1 until end of turn.”

Concentration

Whenever enchanted creature is dealt damage, sacrifice this Aura.

If a creature has two or more Auras with Concentration attached to it, all of them except the last one attached are put into their owners’ graveyards.

Hoard

To hoard a card, exile that card and put a hoard counter on it.

Your hoard consists of all cards you’ve exiled this way for as long as they have hoard counters on them.