Westerplatte

When W enters the battlefield sacrifice creatures and put life counters on W equal to 2*(their toughness)+4. W is immune to spells/abilities that would destroy it. If your opponent attacks he must attack W with creatures with power equal or grater than 6 or attack a different b.f.. Creatures that deal damage to W take two damage. L. c. are removed from W equal to damage dealt to it. Your opponent choses which b.f. he attacks. When W has no l. c. on it exile W and your opponent draws a card.