That might be damage doublers, or it could be cards like Curiosity and Ob Nixilis, Captive Kingpin
At the end of the day, Ward is a very powerful mechanic that can be especially devasting in Limited environments
In multi-colour, there are a whopping nine Dimir (blue/black), two Golgari (black/green), and two Esper (white/blue/black), two Sultai (black/green/blue), and one Bant (green/white/blue) with The Brothers' War's Tocasia, Digsite Mentor.
It may be green, but the powerful Phyrexian mana mechanic means that any deck can wield it at the cost of just 2 life
#1: March of Otherworldly Light One of the greatest removal spells of our generation has been gifted to us, and it is legal in Standard, Historic, Alchemy, and Pioneer