The card as is is very cool, but to fit with the thematics of Dream Catcher, you could make your hand sanctified for those 3 turns. Since sanctuary is
![Light :light](https://elementscommunity.org/forum/Smileys/solosmileys/../../../images/Misc/light18x18.png)
, its a bit incongruous, but it does offer temporary hand and quanta protection, in addition to the heal nullification. I think thematically it fits very well, since it prevents Nightmare and Devourers.