Tahm and Veigar are two good examples of riot poor balance
They buffed him every single patch they could, even though they didn't have enough data because their pick ratios weren't that high. Just so now they are a ball of stats because riot buffed them over and over. Veigar E is a god-like mode of J4 ult. Veigar can double stack ap. Veigar passive is 3 times better than the original mana regen one. Tahm whole kit is broken because riot buffed every single aspect of it.
Before, even though his Q was point and click, it had a low range. But riot made it a skillshot, now hits two people, and increased the range so much that he is now way too safe for the lategame he has.