Two New Unique Mage Items

Geomancer's Rod Health + AP Active: Target champion cannot use movement abilities for 3 seconds. (Miasma effect) (alternative) Active: Target champion loses 20% of max health when using movement abilities for 5 seconds. Note: Counters opponents who use movement abilities to play aggressively and escape risk free.

Ethereal Shield (builds from armlet) AP + Armor + Magic Resist Passive: Every 40 seconds, block the first basic attack. Note: Counters basic attack reliant burst and helps vs late game high ad crit adcs.

We already have items that counter frustrating game mechanics (quicksilver sash vs CC, zhonyas vs zed, etc). Why not add items to deal with other frustrating things like people playing risk free due to movement abilities?