RayBoar decks fell off the map by the time of the World Championships
Nobody likes opening up a pack and finding duplicate commons instead of cool shinies - but the thrill of the chase is part of the hobby
If an action instructs a player to transform a non-TDFC, nothing happens
However, if a single creature you control with lifelink deals combat damage to multiple creatures, players, and/or planeswalkers at the same time (perhaps because it has trample or was blocked by more than one creature), the ability will apply only once
Seven mana is steep when cheap, fast aggro decks are taking you down, but Ugin tends to stabilize most boards
If you follow that up with Pack Tactics, you've just made a perfect storm for your opponent by putting them at a willpower disadvantage and allowing you to surge ahead in lore