What happens if a cost or effect requires knowing a player’s life total in a Two-Headed Giant game?

In a Two-Headed Giant game, the unique structure of team-based play means that each team has a shared life total. When a cost or effect requires knowing a player's life total, the correct approach is to use the team's life total. This is because, in Two-Headed Giant, both players on a team act as a single entity for many game interactions, and various effects or costs are tailored to account for their joint life situation.

This collaborative dynamic is essential for understanding how spells, abilities, and costs function within this format. Therefore, when an effect or cost explicitly calls for knowledge of a life total, it will reference the team's combined total rather than one individual player's. This reinforces the teamwork aspect of the format, as players work together, sharing resources and life totals to achieve victory.