For the best pulls you can get in Chaos Rising with your Booster Bundle, this expansion has plenty of high-value single cards you can get out of any of these packs (or buy individually from TCGplayer ): SIR Mega Greninja ex, Mega Hyper Rare Mega Greninja ex, Cinccino ex, Mega Dragalge ex, and Mega Floette ex
While it does take a little bit of a mana commitment and has plenty of ways of being interrupted, both options let you just take the biggest thing you have and stick it on the battlefield
If this card was special summoned, you can add 1 Cosmic Horror or Of Horror card from your deck to your hand, but you cannot special summon monsters from the extra deck for the rest of the turn, except link monsters
Since it is the main removal means, 3 copies are included
Non-foil versions of these cards are available in Collector Boosters