As long as enchanted permanent is an Equipment, it has Equipped creature has deathtouch. Illustrated by Yeong-Hao Han Standard Not Legal Alchemy Not Legal Pioneer Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp
First, for gaining life, I am considering cards that make it easy to do so, such as True Conviction, Dazzling Angel, Archangel of Thune, Trostani, Selesnya's Voice, Sunscorch Regent, Oracle of Nectars, and Lathiel, the Bounteous Dawn, as well as cards that offer payoffs/rewards for gaining life, such as (again) Archangel of Thune, Lathiel, Trelesarra, moon dancer, Blossoming Bogbeast or Trudge Garden
It's still great for buying singles, but Id avoid preorders here
This creature card's power and toughness are each equal to the number of nonland permanents a player controls