If a creature you control is enchanted with multiple Auras that have umbra armor, and the enchanted creature would be destroyed, one of those Auras is destroyed insteadbut only one of them
309.2b: A dungeon card thats brought into the game is put into the command zone until it leaves the game
Its usually best in the 99, but you can run it as your commander too, since its a legendary creature
(You may pay and discard a creature card in addition to any other costs as you cast this spell.) If this creature was kicked, it enters with flying and with X +1/+1 counters on it, where X is the discarded card's mana value
Hydroelectric Laboratory is far less situational, and can still offer your deck a bit of fluidity which isn't too wierd
You can entertain 2-4 players and have endless replayability