Heal

This card is an example of effect allowing the controller to draw a card the next upkeep phase.

Let's start by looking at this card code :

<?xml version="1.0"?>
<card xmlns="http://sourceforge.net/projects/firemox"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://sourceforge.net/projects/firemox ../../validator.xsd"
 name="Heal">
 <rules-author-comment></rules-author-comment>
 <init>
  <registers>
   <register index="white" value="1" />
  </registers>
  <colors>white</colors>
  <idcards>instant</idcards>
 </init>
 <abilities>
  <activated-ability playable="instant" name="" zone="hand">
   <cost>
    <pay-mana value="manacost" />
    <action ref="target-dealtable" />
   </cost>
   <effects>
    <action ref="prevent-1" />
    <action ref="draw-a-card-next-upkeep" />
    <action ref="finish-spell" />
   </effects>
  </activated-ability>
 </abilities>
</card>