sanctuary does: protect you from discord and black hole
in exchange for: 1 hp regen and 1 more quanta to play
in comparison to: SoG
sanctuary is practical, but SoG in the high end is better to have if you do have some. if you don't, sanctuary does the job fine untill you do get some SoG. its neat for mono and duo decks.
Well Sanctuary is unupped. As you can see, the original poster made an unupgraded deck.
one more thing is that your deck has more hp and quanta production than any damage producing cards. you have more odds of having bad draws than getting you dragons or morning wood star.
It actually has too few quantum production cards. 12 pillars/pendulums can support decks with low cost cards, but not decks with 6 of the most expensive dragons. It's damage output is fine.
It's a nice deck (and you chose a good element) but sanctuary becomes much stronger with a good shield*. If the enemy has a lower damage output, sanctuary recovers a larger percentage of your lost health.
*A good shield is one that blocks more than 0 damage.