if (controller != null) {
for (UUID playerId: controller.getInRange()) {
Player player = game.getPlayer(playerId);
if (player != null){
ManaPool pool = player.getManaPool();
pool.addDoNotEmptyManaType(ManaType.WHITE);
pool.addDoNotEmptyManaType(ManaType.GREEN);
pool.addDoNotEmptyManaType(ManaType.BLUE);
pool.addDoNotEmptyManaType(ManaType.RED);
pool.addDoNotEmptyManaType(ManaType.BLACK);
pool.addDoNotEmptyManaType(ManaType.COLORLESS);