i can live with a first-pick ezreal but if the support asks for last pick and you refuse to swap then the support picks rell shouldn't you pick kai'sa samira or mf? even jinx or sivir would be better than that blonde brat (ezreal) even jhin is fine
here is what happened the enemy mid was tahm kench and support was zyra i thought tahm was the support so i locked rell but it was actually zyra support then the enemy adc was caitlyn and my adc picked ezreal and we got absolutely destroyed bot lane so ezreal spent the whole game whining it was flex queue and i was solo while ezreal was solo too but top mid and jungle didn't give a damn about bot lane and just laughed among themselves while throwing the game the only chance we had to turn it around the enemy jungle ganked and ezreal couldn't follow up and even when he tried his q just got blocked by zyra's plants if it was kai'sa samira or mf we would've won with the rell synergy..
summary: if you're gonna insist on last picking adc then at least fix the damn team comp if not just pick earlier ffs if i had seen the caitlyn pick i wouldn't have gone rell i would've just picked karma dammit