Historical Rules · 1 July 2012
Rule 701.20a
Official source text from the 1 July 2012 Rules release
To clash, a player reveals the top card of his or her library. That player may then put that card on the bottom of his or her library.
Historical Rules · 1 July 2012
Official source text from the 1 July 2012 Rules release
To clash, a player reveals the top card of his or her library. That player may then put that card on the bottom of his or her library.