Two-Headed Giant Variant

The main points:

- [ ] The Two-Headed Giant variant uses the shared team turns option.
- [ ] Each team has a **shared life** total, which starts at 30 life.
- [ ] Effects that cause players to get poison counters happen to each player individually. **The poison counters are shared by the team.**
- [ ] The Two-Headed Giant variant can also be played with equally sized teams of more than two players. For each player a team has beyond the second, that team’s starting life total is increased by 15 and the number of poison counters required for the team to lose is increased by five. (These variants are called Three-Headed Giant, Four-Headed Giant, and so on.)