Read the Tides

Tidal 2 (At the beginning of your upkeep,
remove a tide counter from this enchantment.
If you can't, put two tide counters on it.)
{1}{u}: Draw X cards, where X is the number
of tide counters on Read the Tides. Then discard a card. Activate this ability only any
time you could cast a sorcery and only once
each turn.