Each of these monsters have two once per turn activated effects: one relating to Special Summoning a Level 4 or lower "tri-type" monster (save for "Shuraig" and "Arms Bucephalus II" whom instead have an effect to banish a card(s) on the field, and "Arms Mouser" which triggers on summon and sends from Deck/Extra Deck to GY), and one that is optionally triggered when the monster is sent to the GY
He resisted the rebellions of the humans and sided with Atarka, leading warriors during the Phyrexian invasion and attempting to maintain the dragonlord's authority
There's also the little matter of its special power, which prevents any Earth, Wind, Fire, Water, or Dark type monster from eliminating it
Take the following section for example: A Genuine Risk to Hidden-Role Games In addition to the above points, unsleeved cards quickly become scuffed and marked which can create problems when card backing uniformity is paramount within secretive games
It becomes a progressively bigger beater the more creatures you play, and often makes blocking either difficult or straight-up impossible once it's accumulated enough +1/+1 counters
We also got to see some Secret Lair Projects, and the general trajectory of the Magic story