Beidou, Crux Captain

At the beginning of your upkeep, remove all Tide Caller counters from Beidou, Crux Captain. If a counter was removed this way, deal 3 damage to
any target.
{2}: Put a Tide Caller counter on Beidou, she gets
+2/+2 and defender until your next upkeep.
When beidou blocks a creature, remove a Tide
Caller counter. If a counter was removed this way,
deal 5 damage to target attacking creature.