River Merfolk

At the beginning of your upkeep, put a spore counter on this creature. Remove three spore counters from this creature: Create a 1/1 green Saproling creature token.

1: Add B. If this ability has been activated four or more times this turn, sacrifice this creature at the beginning of the next end step.

Whenever this creature attacks and isn't blocked, you may have it deal 3 damage to target creature. If you do, this creature assigns no combat damage this turn.

At the beginning of your upkeep, sacrifice this enchantment unless you pay B. Whenever a player puts a Forest onto the battlefield, this enchantment deals 3 damage to that player unless they put a -1/-1 counter on a creature they control.

Sacrifice a white creature: For each attacking red creature, prevent all combat damage that would be dealt by that creature this turn unless its controller pays 2R.

1G: Target blocking creature gets +0/+1 until end of turn.

T, Sacrifice this creature: Add BB.

Protection from black W: This creature gains first strike until end of turn. WW: This creature gets +1/+0 until end of turn.