While its relatively easy to set up a massive board presence relatively quickly, one board wipe can ruin all of your effort, making it difficult to rebuild
Each one has the Aura and Role subtypes and the enchant creature ability
But to make that ability available for just two mana a tiny fraction of what might be available to a player at the time ensures that Time Walk can steal a match in completely unfair ways
Of course, these abilities only benefit equipment decks, but in their element, you've got card advantage and mana speed, rare but appreciated effects for white
6 Brilliant Restoration Can Bring A Player Back From The Brink Brilliant Restoration is seven-cost sorcery that allows the return of all enchantments and artifacts
You need a critical mass of colored sources to cast everything so make sure that critical mass is stable