As Caged Sun enters the battlefield, choose a color. Creatures you control of the chosen color get +1/+1. Whenever a land's ability causes you to add one or more mana of the chosen color, add one additional mana of that color.
Trample {3}{R}, Sacrifice an artifact: Bosh, Iron Golem deals damage equal to the sacrificed artifact's converted mana cost to any target.
Equipped creature has myriad. (Whenever it attacks, for each opponent other than defending player, you may create a token that's a copy of that creature that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.) Equip {4}
Flying, vigilance, deathtouch, lifelink At the beginning of your end step, proliferate. (You choose any number of permanents and/or players with counters on them, then give each another counter of a kind already there.)
{T}: Add {C}. {1}, {T}: Until end of turn, creatures your opponents control lose hexproof and shroud and can't have hexproof or shroud.
Vigilance When Arbiter of Knollridge enters the battlefield, each player's life total becomes the highest life total among all players.
Flying When Angel of Serenity enters the battlefield, you may exile up to three other target creatures from the battlefield and/or creature cards from graveyards. When Angel of Serenity leaves the battlefield, return the exiled cards to their owners' hands.