Pillar of Light

In Commander, Pillar of Light is outclassed by white's deep bench of unconditional removal — Swords to Plowshares, Path to Exile, and Generous Gift all do more for the same or less mana without the tapped restriction. In Pauper it's legal and the constraint matters less since the format's threats are smaller and the removal options are narrower, but even there better white commons exist. Across Legacy, Modern, and Pioneer the card sees no meaningful play; the tapped-and-high-toughness double condition is simply too narrow in formats where speed and consistency are everything. Pillar of Light occupies a corner case that almost never lines up when you need it most.