The Nymph

Creatures you control get +1/+8 and
gain hexproof.
Put a -1/-1 counter on The Nymph: Search
your library for an enchantment or artifact card,
reveal it, and put it into your hand. Then shuffle
your library. Only activate this ability if The
Nymph has no -1/-1 counters.
Whenever an opponent casts a spell with
converted mana cost 5 or greater, put a +1/+1
counter on The Nymph.