Texto em português

Você pode gastar mana como se fosse de qualquer cor para ativar as habilidades de criaturas que você controla.

As criaturas que você controla com marcadores +1/+1 têm todas as habilidades ativadas de todos os cards de criatura exilados com Caldeirão de Almas de Agatha.

{T} : Exile o card alvo de um cemitério. Quando um card de criatura for exilado dessa forma, coloque um marcador +1/+1 na criatura alvo que você controla.

Rulings

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.2023-09-01
Agatha's Soul Cauldron grants only activated abilities. It doesn't grant keyword abilities (unless those keyword abilities are activated), triggered abilities, or static abilities.2023-09-01
The granted abilities effectively use "this permanent" rather than "[that card's name]," so you treat the abilities as though they were printed on the creature that gained the ability. For example, say you exiled the card Argothian Sprite with Agatha's Soul Cauldron. Argothian Sprite has the ability "{7}: Put two +1/+1 counters on Argothian Sprite." If you controlled a Callous Sell-Sword with a +1/+1 counter on it, you'd treat it as though it had the ability "{7}: Put two +1/+1 counters on Callous Sell-Sword."2023-09-01