Since when did we start having absurd shields?

Playing a burst mage or assassin feels so unrewarding right now because of the ridiculous shield amounts. We have heal/shield %multipliers, giving 1000+ shield, and other crap like , warlords, and ardent censor life drain so it's almost impossible to 1 shot an adc even if you land everything. You need at least 3 people to try to burst an adc and that's too much of a commitment. It feels like if your team doesn't have an enchanter support, you will be at a huge disadvantage because your adc will be much less powerful.