So, instead, I give you the best way to go based on your goal: For fun : The free methods are your friend, my friend
I rarely play storm or decks where proliferating matters, but I can absolutely imagine this card putting in a lot of work for someone that is used to playing both of those and causing an absolutely overwhelming amount of value at instant speed
This is always going to be a much safer play than a $20 card which has the chance to lose most of its value overnight if it is banned or outmoded by another card or a metagame shift
But the real spice is its stagger abilityif Lightning hits an opponent, all sources deal double damage to them until your next turn
Demon of Fates Design, however, lets you approximate Bolas Citadel by casting one enchantment spell per turn with life rather than mana
If youre presenting a polished set premium might be the better choice