Magic has to have some kind of cost, whether its money or slots or some drain on the caster (like 4e healing surges).
Even 4e at wills meant another at-will you couldn't use. If 5e rituals could all be cast at will with no cost it would simply be too strong.
Now it might be that perhaps a spellcaster learns X amount of rituals as he levels and so is limited by the rituals he knows....but that chafes against the wizard concept who can learn and research many spells.
Even 4e at wills meant another at-will you couldn't use. If 5e rituals could all be cast at will with no cost it would simply be too strong.
Now it might be that perhaps a spellcaster learns X amount of rituals as he levels and so is limited by the rituals he knows....but that chafes against the wizard concept who can learn and research many spells.