Nidus Prime, Plague Bearer

Infect, Transference, Infested (Creatures that engage
in combat with this card gain infested creature type
in addition to its previous types.)
If a non-token creature you or your opponents control dies, create a 0/1 infested maggot creature token on the creatures owners field.
Nidus Prime, Plague Bearer gains +1/+1 for each infested creature on the field.

Return the Triuna, and the relic will be yours. Fair compensation for the risk.