Id say you want at least 3-5 protection effects, but that depends on what your deck needs
Basic Pokemon cards and energy cards are intended to show up in multiples throughout your deck because competitive decks would have multiple copies of the same card
If you havent already, you really should try out MTG Carpenter for a bit so that you can better understand the rest of this article.) Home Page On MTG Carpenters home page in the above-the-fold area is a full-width illustration, Liliana, Waker of the Dead by Magali Villeneuve, provided by Wizards of the Coasts archive of free downloadable computer wallpapers
When you are behind however it is not doing that much to bail you out of the situation
Will you feel like it's unfair to play with someone more experienced than you
To be clear, this is a sorcery speed effect, but you have priority as soon as it resolves, and sacrificing a creature is a cost to activate the ability, so there's not much of a window for people to remove it before you can use it