Broken Dam

Tap one or two target creatures without horsemanship.

Herald of Hoofbeats

Horsemanship (This creature can't be blocked except by creatures with horsemanship.)
Other Knights you control have horsemanship.

Creatures you control have horsemanship. (They can't be blocked except by creatures with horsemanship.)

Any player may cast spells as though they had flash.
Your opponents can't cast spells during your turn.

({U/P} can be paid with either {U} or 2 life.)
Look at target player's hand.
Draw a card.

Assist (Another player can pay up to {2} of this spell's cost.)
Two target players each draw a card.