How does Undertitan work? What are the 2 runes for?

Question

Accepted Answer

Undertitan has two distinct abilities that trigger under different circumstances:

### 1. "When you play me, give your other units +2 [S] this turn."
*   **Trigger:** This is a triggered ability that activates when you play the card from your hand (or another zone) onto the battlefield.
*   **Effect:** When this ability resolves, all other units you control on the battlefield receive +2 Might for the remainder of the turn.
*   **Note:** Because this is a triggered ability, it goes on the chain and can be responded to. If you play another unit as a reaction to this ability, that new unit will be on the board when the ability resolves and will receive the +2 Might bonus.

### 2. "As I'm revealed from your deck, [Add] [2]."
*   **Trigger:** This ability triggers only when a game effect explicitly instructs you to **reveal** cards from your deck and Undertitan is among them.
*   **Effect:** When revealed this way, you add 2 Energy to your Rune Pool.
*   **Important Clarifications:**
    *   **Drawing is not revealing:** Simply drawing a card (e.g., during your Draw Phase) does not count as revealing it. You do not get the 2 energy when you draw Undertitan.
    *   **Looking is not revealing:** Effects that allow you to "look" at the top card of your deck (like the card *Hook*) do not count as revealing. You must be specifically instructed to "reveal" the card for this ability to trigger.
    *   **Playing is not revealing:** Playing the card from your hand does not trigger this ability; it only triggers the "When you play me" ability.

In summary, the "2 runes" (which refers to **2 Energy**) is a bonus you receive specifically when a card effect forces you to reveal Undertitan from your deck, not when you draw or play it.