Cast Balancing Act by paying {2}{W}{W}.
Holding priority, cast Teferi's Protection by paying {2}{W}, causing all permanents you control to phase out.
Resolve Balancing Act, causing each opponent to sacrifice all their permanents as you control no permanents that aren't phased out.

Each opponent sacrifices all permanents they control

Mass Land Denial

Balancing Act

Teferi's Protection

Cast Balancing Act by paying {2}{W}{W}.
Holding priority, cast Perch Protection by paying {4}{W}{W} and choosing to promise an opponent a gift, causing all permanents you control to phase out and an opponent to take an extra turn after this one.
Resolve Balancing Act, causing each opponent to sacrifice all their permanents as you control no permanents that aren't phased out.

Combos with "Balancing Act"