ReachReach is a static ability.
A creature with flying can’t be blocked except by creatures with flying and/or reach. (See rule 509, “Declare Blockers Step,” and rule 702.9, “Flying.”)
Multiple instances of reach on the same creature are redundant. (CR 702.17)
Colorless creatures you control enter with two additional +1/+1
countersTo counter a spell or ability is to cancel it: remove it from the stack without resolving it. A counter on an object or player is instead a marker that changes characteristics or interacts with rules or abilities; for example, a +1/+1 counter modifies a creature’s power and toughness. (CR 701.6; 122.1) on them.
Whenever this creature enters or attacks,
manifest dread“Manifest dread” means “Look at the top two cards of your library. Manifest one of them, then put the cards you looked at that were not manifested this way into your graveyard.” See rule 701.40, “Manifest.”
An ability that triggers whenever a player manifests dread triggers after the process described in rule 701.62a is complete, even if some or all of those actions were impossible. (CR 701.62). (Look at the top two cards of your library. Put one onto the battlefield face down as a 2/2 creature and the other into your graveyard. Turn it face up any time for its mana cost if it's a creature card.)