Custom Helm - Beserker

(As this Saga enters and after your draw step,
add a lore counter. Sacrifice after IIII.)
Enchant creature you control.
I - Enchanted creature gains indestructible and
must attack each turn.
2- Enchanted creature gains '+3/+3 and all
creatures must block enchanted creature'
3- Sacrifice enchanted creature, cast Custom
Helm - Noir without paying its mana cost.