In order to keep Standing Army from tapping when attacking, you need to be standing (thus granting the Army vigilance) until you're done declaring attackers
Packs per Box This product includes a number of factory-sealed packs of cards
If Tawnoss Coffin becomes untapped or would leave the battlefield, the exiled creature returns with everything attached to it
Creatures (22) 2 Surrak, the Hunt Caller 3 Hangarback Walker 4 Reality Smasher 4 Sylvan Advocate 4 Thought-Knot Seer 1 Kindly Stranger 4 Moldgraf Scavenger Lands (24) Spells (14) Ill go ahead and recommend against this deck, but will highlight that you should start testing for Constructed by actually playing with the new cards
Scoria Cat by Taco Island Hard to exaggerate how many sweet cards are here
Arena looks better, but it currently seems even less capable of doing these things, which means that the program might never have Modern or Legacy functionality