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)
When this creature enters, each player creates a
Food tokenA colorless artifact token: , tap, sacrifice it to gain 3 life. (CR 111.10). (It's an artifact with "
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SacrificeTo sacrifice a permanent, its controller moves it from the battlefield directly to its owner’s graveyard. A player can’t sacrifice something that isn’t a permanent, or something that’s a permanent they don’t control. Sacrificing a permanent doesn’t destroy it, so regeneration or other effects that replace destruction can’t affect this action. (CR 701.21) this token: You gain 3 life.")
At the beginning of combat on your turn, this creature gets +1/+1 until end of turn for each artifact your opponents control.