SCP-610

Enchant target creature.
At the start of each upkeep, put a
disease counter on enchanted creature.
When enchanted creature has 4 disease
counters on it, it is destroyed.
When enchanted creature is destroyed this way,
summon a 2/7 Horror creature token with
Defender and: When Flesh Horror blocks a
creature, search your library and/or graveyard
for a card named 'SCP-610' and attach it to
attacking creature.