diff --git a/core/src/game.rs b/core/src/game.rs
index c7069753..194a26b8 100644
--- a/core/src/game.rs
+++ b/core/src/game.rs
@@ -2121,6 +2121,9 @@ mod tests {
 
         // que ota?
         game.resolve(Cast::new(source, player_id, target, Skill::Siphon));
+        game.resolve(Cast::new(source, player_id, target, Skill::Siphon));
+        game.resolve(Cast::new(source, player_id, target, Skill::Siphon));
+
         let last = game.resolutions.len() - 1;
         let resolutions = &game.resolutions[last];
 
@@ -2129,7 +2132,18 @@ mod tests {
             _ => false,
         }).count();
 
+        let effect_events = resolutions.iter().filter(|r| match r.event {
+            Event::Effect { construct, effect, duration: _, display: _ } =>
+                construct == target && effect == Effect::Siphon,
+            _ => false,
+        }).count();
+
+        // Deal siphon dmg once
         assert_eq!(damage_events, 1);
+        // 3 new applications of siphon
+        assert_eq!(effect_events, 3);
+        // Siphon + Siphoned
+        assert!(game.players[1].constructs[0].effects.len() == 2);
     }
 
     #[test]