Because blockers are chosen all at once, you can't block with a creature with afterlife, wait for it to die, then block with the resulting Spirit tokens.
Tithe Taker
Activated abilities contain a colon. They're generally written "[Cost]: [Effect]." Some keyword abilities are activated abilities and will have colons in their reminder text. An activated mana ability is one that produces mana as it resolves, not one that costs mana to activate. Triggered abilities (starting with "when," "whenever," or "at") are unaffected by Tithe Taker.
An opponent's activated ability that costs no mana to activate will cost {1} plus its non-mana costs during your turn.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Aaron Miller
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
