Gruul Turf + Kodama of the East Tree + Omnath, Locus of Rage
Overview
When you play Gruul Turf as your land for the turn it enters the battlefield as a special action (see and ). That single event causes Gruul Turf’s own “when this land enters” triggered ability, Kodama of the East Tree’s triggered ability (it saw “another permanent you control enters”), and Omnath, Locus of Rage’s Landfall triggered ability all to trigger; those triggered abilities are put on the stack after the land enters and state-based actions are checked (see ).
Step 1
You play Gruul Turf as your land for the turn; playing a land is a special action that puts the land onto the battlefield directly (not on the stack) .
Step 2
Gruul Turf enters the battlefield tapped and its static/triggered text creates a triggered ability: “When this land enters, return a land you control to its owner’s hand.” Omnath’s Landfall trigger (“Whenever a land you control enters…”) also triggers, and Kodama’s trigger (“Whenever another permanent you control enters…”) also triggers because Gruul Turf is another permanent you control entering the battlefield; all three triggers are noted by the game after the land has entered .
Step 3
After state-based actions are checked, the triggered abilities are put on the stack and will resolve in the order they were placed (subject to active player/nonactive player placement rules). The land’s triggered ability and the other triggered abilities can resolve in any stack order that results from that placement .
Step 4
When the Gruul Turf triggered ability resolves you return a land you control to your hand. You may choose to return the Gruul Turf itself if it’s legal to do so (see Ruling [2013-04-15]).
Step 5
When Kodama’s triggered ability resolves it lets you put a permanent card with mana value equal to or less than the entering permanent’s mana value from your hand onto the battlefield. Because Gruul Turf has no mana cost (mana value 0), Kodama lets you put only a mana-value-0 permanent (typically a land) from your hand onto the battlefield.
Step 6
If Kodama puts a land onto the battlefield, that is a separate land-entering event and Omnath will trigger again for that new entry; however, a permanent put onto the battlefield by Kodama’s ability won’t cause Kodama to trigger (Kodama’s ability excludes permanents that were put onto the battlefield with that ability).
Resolution
Play of Gruul Turf: Gruul Turf enters (special action) and three triggered abilities trigger: Gruul Turf’s return-a-land ability, Kodama’s “whenever another permanent you control enters…” ability, and Omnath’s Landfall. All three triggers are placed waiting to be put on the stack after the land enters per . Each trigger will resolve in whatever order they are put on the stack; Omnath will create a 5/5 Elemental token for each separate land-entered event that resolves (the original entry and any additional land entries created via Kodama). Kodama’s ability looks at the mana value of the entering permanent (Gruul Turf has mana value 0 because it has no mana cost) and lets you put a permanent card with equal or lesser mana value from your hand onto the battlefield — so with Gruul Turf as the triggering permanent you may only put a mana-value-0 permanent (typically a land) onto the battlefield with Kodama. If Gruul Turf’s triggered ability returns the land to your hand before Kodama resolves, Kodama can still put a (mana-value-0) land from your hand onto the battlefield (including that Gruul Turf) because Kodama’s trigger was created by the original entry. If Kodama puts a land onto the battlefield, that is another land-enter event and will cause Omnath to trigger for that entry as well, but a permanent put onto the battlefield by Kodama will not cause Kodama to trigger (Kodama’s ability explicitly excludes permanents put onto the battlefield with that ability). See , , and .
