Method cloak

forge-game/src/main/java/forge/game/card/Card.java:794–818

(Player p, SpellAbility sa, Map<AbilityKey, Object> params)

    }

    public Card cloak(Player p, SpellAbility sa, Map<AbilityKey, Object> params) {
        // Turn Face Down (even if it's DFC).
        // Sometimes cards are manifested while already being face down
        if (!turnFaceDown(true) && !isFaceDown()) {
            return null;
        }

        // Just in case you aren't the controller, now you are!
        setController(p, game.getNextTimestamp());

        // Mark this card as "cloaked"
        setCloaked(sa);
        // give it Ward:2
        getFaceDownState().addIntrinsicKeyword("Ward:2", true);

        // Move to p's battlefield
        Card c = game.getAction().moveToPlay(this, p, sa, params);
        if (c.isInPlay()) {
            c.setCloaked(sa);
            c.turnFaceDown(true);
            c.updateStateForView();
        }

        return c;
    }

    public boolean turnFaceDown() {
        return turnFaceDown(false);