It asks more of you, but the ceiling is of course higher
Forbidden Chalice went up in usefulness due to Shaddoll being somewhat prevalent in the meta again, since neither Imperm or Veiler can hit Winda as it usually gets summoned in the middle of your turn
It's situational and matchup-dependent, but when it works, damn it sure does work: not only it effectively negates the effect of the Spell/Trap, also it gives you card draws and card advantage that accumulates for each turn that passes
As for some helpful advice on the matter: Spellbook Star Hall -3 Grandspell book Tower -2 Royal Magical Library + 1 Magical Citadel + 3[With Library Maxxed out, and a constant usage of spells, it can fuel Library for a long time if drawn early game.] Terraforming + 2 [Searching, and can add fuel to the fire] Hand Destruction + 2/3 [To get rid of those extra's, like Citadel or Terraforming.] If i gave anymore suggestions, i'm sure it wouldn't even turn into a spellbook Exo Deck anymore in your eyes, so i'll leave with those