Cheyenne, Thrice Reborn

Flying, Haste, Undying, Hexproof
Creatures lose doublestrike, trample and haste
and can't gain doublestrike, trample, and haste.
Triple all damage creatures would deal
Landfall - After this phase there is an additional
combat phase followed by an additional main
phase, untap all creatures you control
Flips from Cheyenne, Twice Reborn