Katara, the Fearless

In some cases involving linked abilities, an ability requires information about "the exiled card." When this happens, the ability gets multiple answers. If these answers are being used to determine the value of a variable, the sum is used.

Replacement effects are unaffected by Katara's ability. For example, an Ally that enters with one +1/+1 counter on it won't receive an additional +1/+1 counter.

If an Ally entering at the same time as Katara (including Katara herself) causes a triggered ability of an Ally you control to trigger, that ability triggers an additional time.