Historical Rules · 11 November 2016
Rule 701.21a
Official source text from the 11 November 2016 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 · 11 November 2016
Official source text from the 11 November 2016 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.