Tolsimir, Friend to Wolves [War of the Spark Prerelease Promos] Commander 2015 Tokens When that creature becomes blocked

When that creature becomes blocked this turn

Set: Ravnica Allegiance Guild Kit Type: Creature — Beast Rarity: Rare Cost: {5}{G}{G} When Protean Hulk dies

sacrifice this artifact unless you pay {2}

but how could that be

and it becomes a Vampire in addition to its other types

Tolsimir, Friend to Wolves [War of the Spark Prerelease Promos] Commander 2015 Tokens When that creature becomes blockedSet: War of the Spark Prerelease Promos Type: Legendary Creature Elf Scout Rarity: Rare Cost: {2}{G}{G}{W} When Tolsimir, Friend to Wolves enters the battlefield, create Voja, Friend to Elves, a legendary 3 3 green and white Wolf creature token. Whenever a Wolf enters the battlefield under your control, you gain 3 life and that creature fights up to one target creature you don't control.