magarena/release/Magarena/scripts/Seer_s_Sundial.groovy

[
    new MagicLandfallTrigger() {
        @Override
        public MagicEvent getEvent(final MagicPermanent permanent) {
            return new MagicEvent(
                permanent,
                new MagicMayChoice(
                    new MagicPayManaCostChoice(MagicManaCost.create("{2}"))
                ),
                this,
                "You may\$ pay {2}\$. If you do, draw a card."
            );
        }

        @Override
        public void executeEvent(final MagicGame game, final MagicEvent event) {
            if (event.isYes()) {
                game.doAction(new MagicDrawAction(event.getPlayer()));
            }
        }
    }
]