You Stumble upon Friendship

All your creatures now have the subtype Friend in addition to any othe subtypes they already have.
On each of your end steps Roll a d8, all your
Friend creatures receive:
—1-2: Haste and Flying
—3-4: Trample and Vigilance
—5-6: First Strike and Life-Link
{line}7-8: Double strike and hexproof
If it's wednesday your Friend creatures receive all possible effects.