Some, like Heavens Charm, put themselves into your hand, others, like Heavens Gate, power up all your Digimon and security Digimon by 5000, before going back to your hand
Tymna is a top commander choice because she has the Partner ability, which - like Tymna herself - was introduced in the Commander 2016 set
Why grade with MGC
(It's an artifact with ", , Discard a card, Sacrifice this token: Draw a card.") Land Land (CTRL to add secondary) Lifegain Lifegain (CTRL to add secondary) Pump Stolen Vitality Target creature gets +3/+1 until end of turn
The Fang of Critias Type Spell Card Archetype Legendary Knight TCG Date 2015-07-16 OCG Date 2015-05-16 Card Text (This card is also always treated as "Legendary Dragon Critias".) Send 1 Trap from your hand or field to the GY, that is listed on a Fusion Monster that can only be Special Summoned with "The Fang of Critias" (if that card is Set, reveal it), then Special Summon that Fusion Monster from your Extra Deck
Based on the phrases in the video released together, there was speculation that it was a game or a cartoon
