Two-headed Giant Mill?

[Valentine]

If one player plays Tome Scour on the opposite team, do both members put the top five cards of their deck into their graveyard?

Thanks

[Dark_drac0]

just whichever player you target, but if one player needs to draw a card with an empty library, the whole team loses.

[paperwarrior]

No, Tome Scour targets a player, not a team. Only the player you targeted mills 5.

[Ender Wiggin]

Tome scour says target player on it, so it only targets one player. The caster would target a player, and that player would mill the top 5. Note that the player can be anyone, including his teammate or himself.

Cards that affect both heads in a 2hg game would say things like each opponent, like Blood Tithe, or each other player, like Urborg Syphon Mage

[Hoodoo]

Nope. Tome Scour says very clearly "Target player", so you target ONE opponent. Compare to things that say "Each player", or "each opponent"