
First strike
Suspend 4—{R} (Rather than cast this card from your hand, you may pay {R} and exile it with four time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost. It has haste.)
Keldon Halberdier has 4 printings, first in Time Spiral (2006). EDHREC ranks it #25,738 among Commander cards. It appears most in The Face of Boe decks (198 on EDHREC). It has 14 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.